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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="A `Write` implementation that base64 encodes data before delegating to the wrapped writer."><meta name="keywords" content="rust, rustlang, rust-lang, EncoderWriter"><title>EncoderWriter in base64::write - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin 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class="sidebar-menu-toggle">&#9776;</button><a class="sidebar-logo" href="../../base64/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../base64/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">EncoderWriter</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.finish">finish</a></li><li><a href="#method.new">new</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-Debug-for-EncoderWriter%3CW%3E">Debug</a></li><li><a href="#impl-Drop-for-EncoderWriter%3CW%3E">Drop</a></li><li><a href="#impl-Write-for-EncoderWriter%3CW%3E">Write</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-EncoderWriter%3CW%3E">RefUnwindSafe</a></li><li><a href="#impl-Send-for-EncoderWriter%3CW%3E">Send</a></li><li><a href="#impl-Sync-for-EncoderWriter%3CW%3E">Sync</a></li><li><a href="#impl-Unpin-for-EncoderWriter%3CW%3E">Unpin</a></li><li><a href="#impl-UnwindSafe-for-EncoderWriter%3CW%3E">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-EncoderWriter%3CW%3E">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-EncoderWriter%3CW%3E">Borrow&lt;T&gt;</a></li><li><a href="#impl-BorrowMut%3CT%3E-for-EncoderWriter%3CW%3E">BorrowMut&lt;T&gt;</a></li><li><a href="#impl-From%3CT%3E-for-EncoderWriter%3CW%3E">From&lt;T&gt;</a></li><li><a href="#impl-Into%3CU%3E-for-EncoderWriter%3CW%3E">Into&lt;U&gt;</a></li><li><a href="#impl-TryFrom%3CU%3E-for-EncoderWriter%3CW%3E">TryFrom&lt;U&gt;</a></li><li><a href="#impl-TryInto%3CU%3E-for-EncoderWriter%3CW%3E">TryInto&lt;U&gt;</a></li></ul></section><h2><a href="index.html">In base64::write</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Struct <a href="../index.html">base64</a>::<wbr><a href="index.html">write</a>::<wbr><a class="struct" href="#">EncoderWriter</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../../src/base64/write/encoder.rs.html#56-74">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code>pub struct EncoderWriter&lt;W:&nbsp;Write&gt; { /* private fields */ }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><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>
<h2 id="examples"><a href="#examples">Examples</a></h2>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::io::Write;
<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>enc = base64::write::EncoderWriter::new(Vec::new(), base64::STANDARD);
<span class="comment">// handle errors as you normally would
</span>enc.write_all(<span class="string">b&quot;asdf&quot;</span>).unwrap();
<span class="comment">// could leave this out to be called by Drop, if you don&#39;t care
// about handling errors or getting the delegate writer back
</span><span class="kw">let </span>delegate = enc.finish().unwrap();
<span class="comment">// base64 was written to the writer
</span><span class="macro">assert_eq!</span>(<span class="string">b&quot;YXNkZg==&quot;</span>, <span class="kw-2">&amp;</span>delegate[..]);
</code></pre></div>
<h2 id="panics"><a href="#panics">Panics</a></h2>
<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>
<h2 id="errors"><a href="#errors">Errors</a></h2>
<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>
<h2 id="performance"><a href="#performance">Performance</a></h2>
<p>It has some minor performance loss compared to encoding slices (a couple percent).
It does not do any heap allocation.</p>
</div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><div id="implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-EncoderWriter%3CW%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/base64/write/encoder.rs.html#89-218">source</a><a href="#impl-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;W:&nbsp;Write&gt; <a class="struct" href="struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.new" class="method has-srclink"><a class="srclink rightside" href="../../src/base64/write/encoder.rs.html#91-101">source</a><h4 class="code-header">pub fn <a href="#method.new" class="fnname">new</a>(w: W, config: <a class="struct" href="../struct.Config.html" title="struct base64::Config">Config</a>) -&gt; <a class="struct" href="struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;</h4></section></summary><div class="docblock"><p>Create a new encoder that will write to the provided delegate writer <code>w</code>.</p>
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.finish" class="method has-srclink"><a class="srclink rightside" href="../../src/base64/write/encoder.rs.html#119-131">source</a><h4 class="code-header">pub fn <a href="#method.finish" class="fnname">finish</a>(&amp;mut self) -&gt; Result&lt;W&gt;</h4></section></summary><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>
<h5 id="errors-1"><a href="#errors-1">Errors</a></h5>
<p>The first error that is not of <code>ErrorKind::Interrupted</code> will be returned.</p>
</div></details></div></details></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/base64/write/encoder.rs.html#76-87">source</a><a href="#impl-Debug-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;W:&nbsp;Write&gt; Debug for <a class="struct" href="struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/base64/write/encoder.rs.html#77-86">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a class="fnname">fmt</a>(&amp;self, f: &amp;mut Formatter&lt;'_&gt;) -&gt; Result</h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Drop-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/base64/write/encoder.rs.html#374-381">source</a><a href="#impl-Drop-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;W:&nbsp;Write&gt; Drop for <a class="struct" href="struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.drop" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/base64/write/encoder.rs.html#375-380">source</a><a href="#method.drop" class="anchor"></a><h4 class="code-header">fn <a class="fnname">drop</a>(&amp;mut self)</h4></section></summary><div class='docblock'>Executes the destructor for this type. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Write-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/base64/write/encoder.rs.html#220-372">source</a><a href="#impl-Write-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;W:&nbsp;Write&gt; Write for <a class="struct" href="struct.EncoderWriter.html" title="struct base64::write::EncoderWriter">EncoderWriter</a>&lt;W&gt;</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.write" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/base64/write/encoder.rs.html#237-358">source</a><a href="#method.write" class="anchor"></a><h4 class="code-header">fn <a class="fnname">write</a>(&amp;mut self, input: &amp;[u8]) -&gt; Result&lt;usize&gt;</h4></section></summary><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
<a href="https://github.com/rust-lang/rust/issues/56889">https://github.com/rust-lang/rust/issues/56889</a> 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>
<h5 id="errors-2"><a href="#errors-2">Errors</a></h5>
<p>Any errors emitted by the delegate writer are returned.</p>
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.flush" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/base64/write/encoder.rs.html#365-371">source</a><a href="#method.flush" class="anchor"></a><h4 class="code-header">fn <a class="fnname">flush</a>(&amp;mut self) -&gt; Result&lt;()&gt;</h4></section></summary><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>
<h5 id="errors-3"><a href="#errors-3">Errors</a></h5>
<p>The first error that is not of [<code>ErrorKind::Interrupted</code>] will be returned.</p>
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.write_vectored" class="method trait-impl has-srclink"><a href="#method.write_vectored" class="anchor"></a><h4 class="code-header">fn <a class="fnname">write_vectored</a>(&amp;mut self, bufs: &amp;[IoSlice&lt;'_&gt;]) -&gt; Result&lt;usize, Error&gt;</h4></section></summary><div class='docblock'>Like <a href="Write::write"><code>write</code></a>, except that it writes from a slice of buffers. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.is_write_vectored" class="method trait-impl has-srclink"><a href="#method.is_write_vectored" class="anchor"></a><h4 class="code-header">fn <a class="fnname">is_write_vectored</a>(&amp;self) -&gt; bool</h4></section></summary><div class='docblock'>Determines if this <code>Write</code>r has an efficient <a href="Write::write_vectored"><code>write_vectored</code></a>
implementation. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.write_all" class="method trait-impl has-srclink"><a href="#method.write_all" class="anchor"></a><h4 class="code-header">fn <a class="fnname">write_all</a>(&amp;mut self, buf: &amp;[u8]) -&gt; Result&lt;(), Error&gt;</h4></section></summary><div class='docblock'>Attempts to write an entire buffer into this writer. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.write_all_vectored" class="method trait-impl has-srclink"><a href="#method.write_all_vectored" class="anchor"></a><h4 class="code-header">fn <a class="fnname">write_all_vectored</a>(&amp;mut self, bufs: &amp;mut [IoSlice&lt;'_&gt;]) -&gt; Result&lt;(), Error&gt;</h4></section></summary><div class='docblock'>Attempts to write multiple buffers into this writer. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.write_fmt" class="method trait-impl has-srclink"><a href="#method.write_fmt" class="anchor"></a><h4 class="code-header">fn <a class="fnname">write_fmt</a>(&amp;mut self, fmt: Arguments&lt;'_&gt;) -&gt; Result&lt;(), Error&gt;</h4></section></summary><div class='docblock'>Writes a formatted string into this writer, returning any error
encountered. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.by_ref" class="method trait-impl has-srclink"><a href="#method.by_ref" class="anchor"></a><h4 class="code-header">fn <a class="fnname">by_ref</a>(&amp;mut self) -&gt; &amp;mut Self</h4></section></summary><div class='docblock'>Creates a “by reference” adapter for this instance of <code>Write</code>. <a>Read more</a></div></details></div></details></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"><section id="impl-RefUnwindSafe-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;W&gt; RefUnwindSafe for <a class="struct" href="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: RefUnwindSafe,</span></h3></section><section id="impl-Send-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-Send-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;W&gt; Send for <a class="struct" href="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: Send,</span></h3></section><section id="impl-Sync-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-Sync-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;W&gt; Sync for <a class="struct" href="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: Sync,</span></h3></section><section id="impl-Unpin-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-Unpin-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;W&gt; Unpin for <a class="struct" href="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: Unpin,</span></h3></section><section id="impl-UnwindSafe-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-UnwindSafe-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;W&gt; UnwindSafe for <a class="struct" href="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: UnwindSafe,</span></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-Any-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; Any for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: 'static + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a class="fnname">type_id</a>(&amp;self) -&gt; TypeId</h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-Borrow%3CT%3E-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; Borrow&lt;T&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow</a>(&amp;self) -&gt; &amp;T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-BorrowMut%3CT%3E-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; BorrowMut&lt;T&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow_mut</a>(&amp;mut self) -&gt; &amp;mut T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-From%3CT%3E-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; From&lt;T&gt; for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">from</a>(t: T) -&gt; T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-Into%3CU%3E-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; Into&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: From&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">into</a>(self) -&gt; U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
<p>That is, this conversion is whatever the implementation of
<code>[From]&lt;T&gt; for U</code> chooses to do.</p>
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-TryFrom%3CU%3E-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; TryFrom&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: Into&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = Infallible</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_from</a>(value: U) -&gt; Result&lt;T, &lt;T as TryFrom&lt;U&gt;&gt;::Error&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-EncoderWriter%3CW%3E" class="impl has-srclink"><a href="#impl-TryInto%3CU%3E-for-EncoderWriter%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; TryInto&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: TryFrom&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = &lt;U as TryFrom&lt;T&gt;&gt;::Error</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_into</a>(self) -&gt; Result&lt;U, &lt;U as TryFrom&lt;T&gt;&gt;::Error&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="base64" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html>