<linkrel="alternate icon"type="image/png"href="../../favicon-32x32.png"><styletype="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><bodyclass="rustdoc mod"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="sidebar"><divclass="sidebar-menu">☰</div><ahref='../../base64/index.html'><divclass='logo-container rust-logo'><imgsrc='../../rust-logo.png'alt='logo'></div></a><pclass="location">Module write</p><divclass="sidebar-elems"><divclass="block items"><ul><li><ahref="#structs">Structs</a></li></ul></div><pclass="location"><ahref="../index.html">base64</a></p><divid="sidebar-vars"data-name="write"data-ty="mod"data-relpath="../"></div><scriptdefersrc="../sidebar-items.js"></script></div></nav><divclass="theme-picker"><buttonid="theme-picker"aria-label="Pick another theme!"aria-haspopup="menu"><imgsrc="../../brush.svg"width="18"alt="Pick another theme!"></button><divid="theme-choices"role="menu"></div></div><scriptsrc="../../theme.js"></script><navclass="sub"><formclass="search-form"><divclass="search-container"><div><selectid="crate-search"><optionvalue="All crates">All crates</option></select><inputclass="search-input"name="search"disabledautocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"></div><buttontype="button"class="help-button">?</button>
<aid="settings-menu"href="../../settings.html"><imgsrc="../../wheel.svg"width="18"alt="Change settings"></a></div></form></nav><sectionid="main"class="content"><h1class="fqn"><spanclass="in-band">Module <ahref="../index.html">base64</a>::<wbr><aclass="mod"href="">write</a></span><spanclass="out-of-band"><spanid="render-detail"><aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass="inner">−</span>]</a></span><aclass="srclink"href="../../src/base64/write/mod.rs.html#1-8"title="goto source code">[src]</a></span></h1><divclass="docblock"><p>Implementations of <code>io::Write</code> to transparently handle base64.</p>
<table><trclass="module-item"><td><aclass="struct"href="struct.EncoderStringWriter.html"title="base64::write::EncoderStringWriter struct">EncoderStringWriter</a></td><tdclass="docblock-short"><p>A <code>Write</code> implementation that base64-encodes data using the provided config and accumulates the
resulting base64 in memory, which is then exposed as a String via <code>into_inner()</code>.</p>
</td></tr><trclass="module-item"><td><aclass="struct"href="struct.EncoderWriter.html"title="base64::write::EncoderWriter struct">EncoderWriter</a></td><tdclass="docblock-short"><p>A <code>Write</code> implementation that base64 encodes data before delegating to the wrapped writer.</p>
initSidebarItems({"struct":[["EncoderStringWriter","A `Write` implementation that base64-encodes data using the provided config and accumulates the resulting base64 in memory, which is then exposed as a String via `into_inner()`."],["EncoderWriter","A `Write` implementation that base64 encodes data before delegating to the wrapped writer."]]});
<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="A `Write` implementation that base64 encodes data before delegating to the wrapped writer."><metaname="keywords"content="rust, rustlang, rust-lang, EncoderWriter"><title>base64::write::EncoderWriter - Rust</title><linkrel="stylesheet"type="text/css"href="../../normalize.css"><linkrel="stylesheet"type="text/css"href="../../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../../light.css"id="themeStyle"><linkrel="stylesheet"type="text/css"href="../../dark.css"disabled><linkrel="stylesheet"type="text/css"href="../../ayu.css"disabled><scriptid="default-settings"></script><scriptsrc="../../storage.js"></script><noscript><linkrel="stylesheet"href="../../noscript.css"></noscript><linkrel="icon"type="image/svg+xml"href="../../favicon.svg">
<linkrel="alternate icon"type="image/png"href="../../favicon-32x32.png"><styletype="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><bodyclass="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="sidebar"><divclass="sidebar-menu">☰</div><ahref='../../base64/index.html'><divclass='logo-container rust-logo'><imgsrc='../../rust-logo.png'alt='logo'></div></a><pclass="location">Struct EncoderWriter</p><divclass="sidebar-elems"><divclass="block items"><aclass="sidebar-title"href="#implementations">Methods</a><divclass="sidebar-links"><ahref="#method.finish">finish</a><ahref="#method.new">new</a></div><aclass="sidebar-title"href="#trait-implementations">Trait Implementations</a><divclass="sidebar-links"><ahref="#impl-Debug">Debug</a><ahref="#impl-Drop">Drop</a><ahref="#impl-Write">Write</a></div><aclass="sidebar-title"href="#synthetic-implementations">Auto Trait Implementations</a><divclass="sidebar-links"><ahref="#impl-RefUnwindSafe">RefUnwindSafe</a><ahref="#impl-Send">Send</a><ahref="#impl-Sync">Sync</a><ahref="#impl-Unpin">Unpin</a><ahref="#impl-UnwindSafe">UnwindSafe</a></div><aclass="sidebar-title"href="#blanket-implementations">Blanket Implementations</a><divclass="sidebar-links"><ahref="#impl-Any">Any</a><ahref="#impl-Borrow%3CT%3E">Borrow<T></a><ahref="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><ahref="#impl-From%3CT%3E">From<T></a><ahref="#impl-Into%3CU%3E">Into<U></a><ahref="#impl-TryFrom%3CU%3E">TryFrom<U></a><ahref="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><pclass="location"><ahref="../index.html">base64</a>::<wbr><ahref="index.html">write</a></p><divid="sidebar-vars"data-name="EncoderWriter"data-ty="struct"data-relpath=""></div><scriptdefersrc="sidebar-items.js"></script></div></nav><divclass="theme-picker"><buttonid="theme-picker"aria-label="Pick another theme!"aria-haspopup="menu"><imgsrc="../../brush.svg"width="18"alt="Pick another theme!"></button><divid="theme-choices"role="menu"></div></div><scriptsrc="../../theme.js"></script><navclass="sub"><formclass="search-form"><divclass="search-container"><div><selectid="crate-search"><optionvalue="All crates">All crates</option></select><inputclass="search-input"name="search"disabledautocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"></div><buttontype="button"class="help-button">?</button>
<aid="settings-menu"href="../../settings.html"><imgsrc="../../wheel.svg"width="18"alt="Change settings"></a></div></form></nav><sectionid="main"class="content"><h1class="fqn"><spanclass="in-band">Struct <ahref="../index.html">base64</a>::<wbr><ahref="index.html">write</a>::<wbr><aclass="struct"href="">EncoderWriter</a></span><spanclass="out-of-band"><spanid="render-detail"><aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass="inner">−</span>]</a></span><aclass="srclink"href="../../src/base64/write/encoder.rs.html#56-74"title="goto source code">[src]</a></span></h1><divclass="docblock type-decl hidden-by-usual-hider"><preclass="rust struct">pub struct EncoderWriter<W: <aclass="trait"href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html"title="trait std::io::Write">Write</a>> { /* fields omitted */ }</pre></div><divclass="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>
<p>It has some minor performance loss compared to encoding slices (a couple percent).
It does not do any heap allocation.</p>
</div><h2id="implementations"class="small-section-header">Implementations<ahref="#implementations"class="anchor"></a></h2><h3id="impl"class="impl"><codeclass="in-band">impl<W: <aclass="trait"href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html"title="trait std::io::Write">Write</a>><aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W></code><ahref="#impl"class="anchor"></a><aclass="srclink"href="../../src/base64/write/encoder.rs.html#89-218"title="goto source code">[src]</a></h3><divclass="impl-items"><h4id="method.new"class="method"><code>pub fn <ahref="#method.new"class="fnname">new</a>(w: W, config: <aclass="struct"href="../../base64/struct.Config.html"title="struct base64::Config">Config</a>) -><aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W><spanclass="notable-traits"><spanclass="notable-traits-tooltip">ⓘ<divclass="notable-traits-tooltiptext"><spanclass="docblock"><h3class="notable">Notable traits for <aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W></h3><codeclass="content"><spanclass="where fmt-newline">impl<W: <aclass="trait"href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html"title="trait std::io::Write">Write</a>><aclass="trait"href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html"title="trait std::io::Write">Write</a> for <aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W></span></code></span></div></span></span></code><aclass="srclink"href="../../src/base64/write/encoder.rs.html#91-101"title="goto source code">[src]</a></h4><divclass="docblock"><p>Create a new encoder that will write to the provided delegate writer <code>w</code>.</p>
</div><h4id="method.finish"class="method"><code>pub fn <ahref="#method.finish"class="fnname">finish</a>(&mut self) -><aclass="type"href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html"title="type std::io::error::Result">Result</a><W></code><aclass="srclink"href="../../src/base64/write/encoder.rs.html#119-131"title="goto source code">[src]</a></h4><divclass="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>
<p>The first error that is not of <code>ErrorKind::Interrupted</code> will be returned.</p>
</div></div><h2id="trait-implementations"class="small-section-header">Trait Implementations<ahref="#trait-implementations"class="anchor"></a></h2><divid="trait-implementations-list"><h3id="impl-Debug"class="impl"><codeclass="in-band">impl<W: <aclass="trait"href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html"title="trait std::io::Write">Write</a>><aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html"title="trait core::fmt::Debug">Debug</a> for <aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W></code><ahref="#impl-Debug"class="anchor"></a><aclass="srclink"href="../../src/base64/write/encoder.rs.html#76-87"title="goto source code">[src]</a></h3><divclass="impl-items"><h4id="method.fmt"class="method hidden"><code>fn <ahref="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt"class="fnname">fmt</a>(&self, f: &mut <aclass="struct"href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html"title="struct core::fmt::Formatter">Formatter</a><'_>) -><aclass="type"href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html"title="type core::fmt::Result">Result</a></code><aclass="srclink"href="../../src/base64/write/encoder.rs.html#77-86"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Formats the value using the given formatter. <ahref="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
</div></div><h3id="impl-Drop"class="impl"><codeclass="in-band">impl<W: <aclass="trait"href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html"title="trait std::io::Write">Write</a>><aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html"title="trait core::ops::drop::Drop">Drop</a> for <aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W></code><ahref="#impl-Drop"class="anchor"></a><aclass="srclink"href="../../src/base64/write/encoder.rs.html#374-381"title="goto source code">[src]</a></h3><divclass="impl-items"><h4id="method.drop"class="method hidden"><code>fn <ahref="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop"class="fnname">drop</a>(&mut self)</code><aclass="srclink"href="../../src/base64/write/encoder.rs.html#375-380"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Executes the destructor for this type. <ahref="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop">Read more</a></p>
</div></div><h3id="impl-Write"class="impl"><codeclass="in-band">impl<W: <aclass="trait"href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html"title="trait std::io::Write">Write</a>><aclass="trait"href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html"title="trait std::io::Write">Write</a> for <aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W></code><ahref="#impl-Write"class="anchor"></a><aclass="srclink"href="../../src/base64/write/encoder.rs.html#220-372"title="goto source code">[src]</a></h3><divclass="impl-items"><h4id="method.write"class="method"><code>fn <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#tymethod.write"class="fnname">write</a>(&mut self, input: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -><aclass="type"href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html"title="type std::io::error::Result">Result</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>></code><aclass="srclink"href="../../src/base64/write/encoder.rs.html#237-358"title="goto source code">[src]</a></h4><divclass="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
<p>Any errors emitted by the delegate writer are returned.</p>
</div><h4id="method.flush"class="method"><code>fn <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#tymethod.flush"class="fnname">flush</a>(&mut self) -><aclass="type"href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html"title="type std::io::error::Result">Result</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code><aclass="srclink"href="../../src/base64/write/encoder.rs.html#365-371"title="goto source code">[src]</a></h4><divclass="docblock"><p>Because this is usually treated as OK to call multiple times, it will <em>not</em> flush any
<p>The first error that is not of <ahref="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><h4id="method.write_vectored"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_vectored"class="fnname">write_vectored</a>(&mut self, bufs: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><aclass="struct"href="https://doc.rust-lang.org/nightly/std/io/struct.IoSlice.html"title="struct std::io::IoSlice">IoSlice</a><'_><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <aclass="struct"href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html"title="struct std::io::error::Error">Error</a>></code><spanclass="since"title="Stable since Rust version 1.36.0">1.36.0</span><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1355"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Like <ahref="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. <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_vectored">Read more</a></p>
</div><h4id="method.is_write_vectored"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.is_write_vectored"class="fnname">is_write_vectored</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1370"title="goto source code">[src]</a></h4><divclass="item-info hidden"><divclass="stab unstable"><spanclass="emoji">🔬</span> This is a nightly-only experimental API. (<code>can_vector</code>)</div></div><divclass='docblock hidden'><p>Determines if this <code>Write</code>r has an efficient <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_vectored"><code>write_vectored</code></a>
</div><h4id="method.write_all"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_all"class="fnname">write_all</a>(&mut self, buf: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <aclass="struct"href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html"title="struct std::io::error::Error">Error</a>></code><spanclass="since"title="Stable since Rust version 1.0.0">1.0.0</span><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1432"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Attempts to write an entire buffer into this writer. <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_all">Read more</a></p>
</div><h4id="method.write_all_vectored"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_all_vectored"class="fnname">write_all_vectored</a>(<br> &mut self, <br> bufs: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&mut [</a><aclass="struct"href="https://doc.rust-lang.org/nightly/std/io/struct.IoSlice.html"title="struct std::io::IoSlice">IoSlice</a><'_><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a><br>) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <aclass="struct"href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html"title="struct std::io::error::Error">Error</a>></code><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1494"title="goto source code">[src]</a></h4><divclass="item-info hidden"><divclass="stab unstable"><spanclass="emoji">🔬</span> This is a nightly-only experimental API. (<code>write_all_vectored</code>)</div></div><divclass='docblock hidden'><p>Attempts to write multiple buffers into this writer. <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_all_vectored">Read more</a></p>
</div><h4id="method.write_fmt"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.write_fmt"class="fnname">write_fmt</a>(&mut self, fmt: <aclass="struct"href="https://doc.rust-lang.org/nightly/core/fmt/struct.Arguments.html"title="struct core::fmt::Arguments">Arguments</a><'_>) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <aclass="struct"href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html"title="struct std::io::error::Error">Error</a>></code><spanclass="since"title="Stable since Rust version 1.0.0">1.0.0</span><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1547"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Writes a formatted string into this writer, returning any error
</div><h4id="method.by_ref"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.by_ref"class="fnname">by_ref</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>Self</code><spanclass="since"title="Stable since Rust version 1.0.0">1.0.0</span><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/std/io/mod.rs.html#1603-1605"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Creates a “by reference” adaptor for this instance of <code>Write</code>. <ahref="https://doc.rust-lang.org/nightly/std/io/trait.Write.html#method.by_ref">Read more</a></p>
</div></div></div><h2id="synthetic-implementations"class="small-section-header">Auto Trait Implementations<ahref="#synthetic-implementations"class="anchor"></a></h2><divid="synthetic-implementations-list"><h3id="impl-RefUnwindSafe"class="impl"><codeclass="in-band">impl<W><aclass="trait"href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html"title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W><spanclass="where fmt-newline">where<br> W: <aclass="trait"href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html"title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a>, </span></code><ahref="#impl-RefUnwindSafe"class="anchor"></a></h3><divclass="impl-items"></div><h3id="impl-Send"class="impl"><codeclass="in-band">impl<W><aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a> for <aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W><spanclass="where fmt-newline">where<br> W: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a>, </span></code><ahref="#impl-Send"class="anchor"></a></h3><divclass="impl-items"></div><h3id="impl-Sync"class="impl"><codeclass="in-band">impl<W><aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a> for <aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W><spanclass="where fmt-newline">where<br> W: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a>, </span></code><ahref="#impl-Sync"class="anchor"></a></h3><divclass="impl-items"></div><h3id="impl-Unpin"class="impl"><codeclass="in-band">impl<W><aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html"title="trait core::marker::Unpin">Unpin</a> for <aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W><spanclass="where fmt-newline">where<br> W: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html"title="trait core::marker::Unpin">Unpin</a>, </span></code><ahref="#impl-Unpin"class="anchor"></a></h3><divclass="impl-items"></div><h3id="impl-UnwindSafe"class="impl"><codeclass="in-band">impl<W><aclass="trait"href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html"title="trait std::panic::UnwindSafe">UnwindSafe</a> for <aclass="struct"href="../../base64/write/struct.EncoderWriter.html"title="struct base64::write::EncoderWriter">EncoderWriter</a><W><spanclass="where fmt-newline">where<br> W: <aclass="trait"href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html"title="trait std::panic::UnwindSafe">UnwindSafe</a>, </span></code><ahref="#impl-UnwindSafe"class="anchor"></a></h3><divclass="impl-items"></div></div><h2id="blanket-implementations"class="small-section-header">Blanket Implementations<ahref="#blanket-implementations"class="anchor"></a></h2><divid="blanket-implementations-list"><h3id="impl-Any"class="impl"><codeclass="in-band">impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html"title="trait core::any::Any">Any</a> for T <spanclass="where fmt-newline">where<br> T: 'static + ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref="#impl-Any"class="anchor"></a><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135"title="goto source code">[src]</a></h3><divclass="impl-items"><h4id="method.type_id"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id"class="fnname">type_id</a>(&self) -><aclass="struct"href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html"title="struct core::any::TypeId">TypeId</a></code><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <ahref="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
</div></div><h3id="impl-Borrow%3CT%3E"class="impl"><codeclass="in-band">impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html"title="trait core::borrow::Borrow">Borrow</a><T> for T <spanclass="where fmt-newline">where<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref="#impl-Borrow%3CT%3E"class="anchor"></a><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#207-211"title="goto source code">[src]</a></h3><divclass="impl-items"><h4id="method.borrow"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow"class="fnname">borrow</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Immutably borrows from an owned value. <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
</div></div><h3id="impl-BorrowMut%3CT%3E"class="impl"><codeclass="in-band">impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html"title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <spanclass="where fmt-newline">where<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref="#impl-BorrowMut%3CT%3E"class="anchor"></a><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214-218"title="goto source code">[src]</a></h3><divclass="impl-items"><h4id="method.borrow_mut"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut"class="fnname">borrow_mut</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#215"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Mutably borrows from an owned value. <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
</div></div><h3id="impl-From%3CT%3E"class="impl"><codeclass="in-band">impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for T</code><ahref="#impl-From%3CT%3E"class="anchor"></a><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545-549"title="goto source code">[src]</a></h3><divclass="impl-items"><h4id="method.from"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from"class="fnname">from</a>(t: T) -> T</code><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#546"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id="impl-Into%3CU%3E"class="impl"><codeclass="in-band">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html"title="trait core::convert::From">From</a><T>, </span></code><ahref="#impl-Into%3CU%3E"class="anchor"></a><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#534-541"title="goto source code">[src]</a></h3><divclass="impl-items"><h4id="method.into"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into"class="fnname">into</a>(self) -> U</code><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#538"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id="impl-TryFrom%3CU%3E"class="impl"><codeclass="in-band">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>, </span></code><ahref="#impl-TryFrom%3CU%3E"class="anchor"></a><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#582-591"title="goto source code">[src]</a></h3><divclass="impl-items"><h4id="associatedtype.Error"class="type"><code>type <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"class="type">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></code></h4><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4id="method.try_from"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from"class="fnname">try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></code><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#588"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id="impl-TryInto%3CU%3E"class="impl"><codeclass="in-band">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><ahref="#impl-TryInto%3CU%3E"class="anchor"></a><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#568-577"title="goto source code">[src]</a></h3><divclass="impl-items"><h4id="associatedtype.Error-1"class="type"><code>type <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error"class="type">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="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><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4id="method.try_into"class="method hidden"><code>pub fn <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into"class="fnname">try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></code><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#574"title="goto source code">[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
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