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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 converter that encodes a Unicode stream into bytes according to a character encoding in a streaming (incremental) manner."><title>Encoder in encoding_rs - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-ac92e1bbe349e143.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="encoding_rs" data-themes="" data-resource-suffix="" data-rustdoc-version="1.76.0 (07dca489a 2024-02-04)" data-channel="1.76.0" data-search-js="search-2b6ce74ff89ae146.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../static.files/storage-f2adc0d6ca4d09fb.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-305769736d49e732.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-feafe1bb7466e4bd.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">☰</button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../encoding_rs/index.html">encoding_rs</a><span class="version">0.8.35</span></h2></div><h2 class="location"><a href="#">Encoder</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.encode_from_utf16">encode_from_utf16</a></li><li><a href="#method.encode_from_utf16_without_replacement">encode_from_utf16_without_replacement</a></li><li><a href="#method.encode_from_utf8">encode_from_utf8</a></li><li><a href="#method.encode_from_utf8_to_vec">encode_from_utf8_to_vec</a></li><li><a href="#method.encode_from_utf8_to_vec_without_replacement">encode_from_utf8_to_vec_without_replacement</a></li><li><a href="#method.encode_from_utf8_without_replacement">encode_from_utf8_without_replacement</a></li><li><a href="#method.encoding">encoding</a></li><li><a href="#method.has_pending_state">has_pending_state</a></li><li><a href="#method.max_buffer_length_from_utf16_if_no_unmappables">max_buffer_length_from_utf16_if_no_unmappables</a></li><li><a href="#method.max_buffer_length_from_utf16_without_replacement">max_buffer_length_from_utf16_without_replacement</a></li><li><a href="#method.max_buffer_length_from_utf8_if_no_unmappables">max_buffer_length_from_utf8_if_no_unmappables</a></li><li><a href="#method.max_buffer_length_from_utf8_without_replacement">max_buffer_length_from_utf8_without_replacement</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-RefUnwindSafe-for-Encoder">RefUnwindSafe</a></li><li><a href="#impl-Send-for-Encoder">Send</a></li><li><a href="#impl-Sync-for-Encoder">Sync</a></li><li><a href="#impl-Unpin-for-Encoder">Unpin</a></li><li><a href="#impl-UnwindSafe-for-Encoder">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-T">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-T">Into<U></a></li><li><a href="#impl-TryFrom%3CU%3E-for-T">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-T">TryInto<U></a></li></ul></section><h2><a href="index.html">In crate encoding_rs</a></h2></div></nav><div class="sidebar-resizer"></div>
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<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../encoding_rs/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Struct <a href="index.html">encoding_rs</a>::<wbr><a class="struct" href="#">Encoder</a><button id="copy-path" title="Copy item path to clipboard"><img src="../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../src/encoding_rs/lib.rs.html#4504-4507">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub struct Encoder { <span class="comment">/* private fields */</span> }</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A converter that encodes a Unicode stream into bytes according to a
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character encoding in a streaming (incremental) manner.</p>
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<p>The various <code>encode_*</code> methods take an input buffer (<code>src</code>) and an output
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buffer <code>dst</code> both of which are caller-allocated. There are variants for
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both UTF-8 and UTF-16 input buffers.</p>
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<p>An <code>encode_*</code> method encode characters from <code>src</code> into bytes characters
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stored into <code>dst</code> until one of the following three things happens:</p>
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<ol>
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<li>
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<p>An unmappable character is encountered (<code>*_without_replacement</code> variants
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only).</p>
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</li>
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<li>
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<p>The output buffer has been filled so near capacity that the decoder
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cannot be sure that processing an additional character of input wouldn’t
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cause so much output that the output buffer would overflow.</p>
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</li>
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<li>
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<p>All the input characters have been processed.</p>
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</li>
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</ol>
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<p>The <code>encode_*</code> method then returns tuple of a status indicating which one
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of the three reasons to return happened, how many input code units (<code>u8</code>
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when encoding from UTF-8 and <code>u16</code> when encoding from UTF-16) were read,
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how many output bytes were written (except when encoding into <code>Vec<u8></code>,
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whose length change indicates this), and in the case of the variants that
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perform replacement, a boolean indicating whether an unmappable
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character was replaced with a numeric character reference during the call.</p>
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<p>The number of bytes “written” is what’s logically written. Garbage may be
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written in the output buffer beyond the point logically written to.</p>
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<p>In the case of the methods whose name ends with
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<code>*_without_replacement</code>, the status is an <a href="enum.EncoderResult.html"><code>EncoderResult</code></a> enumeration
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(possibilities <code>Unmappable</code>, <code>OutputFull</code> and <code>InputEmpty</code> corresponding to
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the three cases listed above).</p>
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<p>In the case of methods whose name does not end with
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<code>*_without_replacement</code>, unmappable characters are automatically replaced
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with the corresponding numeric character references and unmappable
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characters do not cause the methods to return early.</p>
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<p>When encoding from UTF-8 without replacement, the methods are guaranteed
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not to return indicating that more output space is needed if the length
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of the output buffer is at least the length returned by
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<a href="#method.max_buffer_length_from_utf8_without_replacement"><code>max_buffer_length_from_utf8_without_replacement()</code></a>. When encoding from
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UTF-8 with replacement, the length of the output buffer that guarantees the
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methods not to return indicating that more output space is needed in the
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absence of unmappable characters is given by
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<a href="#method.max_buffer_length_from_utf8_if_no_unmappables"><code>max_buffer_length_from_utf8_if_no_unmappables()</code></a>. When encoding from
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UTF-16 without replacement, the methods are guaranteed not to return
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indicating that more output space is needed if the length of the output
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buffer is at least the length returned by
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<a href="#method.max_buffer_length_from_utf16_without_replacement"><code>max_buffer_length_from_utf16_without_replacement()</code></a>. When encoding
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from UTF-16 with replacement, the the length of the output buffer that
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guarantees the methods not to return indicating that more output space is
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needed in the absence of unmappable characters is given by
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<a href="#method.max_buffer_length_from_utf16_if_no_unmappables"><code>max_buffer_length_from_utf16_if_no_unmappables()</code></a>.
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When encoding with replacement, applications are not expected to size the
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buffer for the worst case ahead of time but to resize the buffer if there
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are unmappable characters. This is why max length queries are only available
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for the case where there are no unmappable characters.</p>
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<p>When encoding from UTF-8, each <code>src</code> buffer <em>must</em> be valid UTF-8. (When
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calling from Rust, the type system takes care of this.) When encoding from
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UTF-16, unpaired surrogates in the input are treated as U+FFFD REPLACEMENT
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CHARACTERS. Therefore, in order for astral characters not to turn into a
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pair of REPLACEMENT CHARACTERS, the caller must ensure that surrogate pairs
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are not split across input buffer boundaries.</p>
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<p>After an <code>encode_*</code> call returns, the output produced so far, taken as a
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whole from the start of the stream, is guaranteed to consist of a valid
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byte sequence in the target encoding. (I.e. the code unit sequence for a
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character is guaranteed not to be split across output buffers. However, due
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to the stateful nature of ISO-2022-JP, the stream needs to be considered
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from the start for it to be valid. For other encodings, the validity holds
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on a per-output buffer basis.)</p>
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<p>The boolean argument <code>last</code> indicates that the end of the stream is reached
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when all the characters in <code>src</code> have been consumed. This argument is needed
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for ISO-2022-JP and is ignored for other encodings.</p>
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<p>An <code>Encoder</code> object can be used to incrementally encode a byte stream.</p>
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<p>During the processing of a single stream, the caller must call <code>encode_*</code>
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zero or more times with <code>last</code> set to <code>false</code> and then call <code>encode_*</code> at
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least once with <code>last</code> set to <code>true</code>. If <code>encode_*</code> returns <code>InputEmpty</code>,
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the processing of the stream has ended. Otherwise, the caller must call
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<code>encode_*</code> again with <code>last</code> set to <code>true</code> (or treat an <code>Unmappable</code> result
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as a fatal error).</p>
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<p>Once the stream has ended, the <code>Encoder</code> object must not be used anymore.
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That is, you need to create another one to process another stream.</p>
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<p>When the encoder returns <code>OutputFull</code> or the encoder returns <code>Unmappable</code>
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and the caller does not wish to treat it as a fatal error, the input buffer
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<code>src</code> may not have been completely consumed. In that case, the caller must
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pass the unconsumed contents of <code>src</code> to <code>encode_*</code> again upon the next
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call.</p>
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<h2 id="infinite-loops"><a href="#infinite-loops">Infinite loops</a></h2>
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<p>When converting with a fixed-size output buffer whose size is too small to
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accommodate one character of output, an infinite loop ensues. When
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converting with a fixed-size output buffer, it generally makes sense to
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make the buffer fairly large (e.g. couple of kilobytes).</p>
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</div></details><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Encoder" class="impl"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4509-4858">source</a><a href="#impl-Encoder" class="anchor">§</a><h3 class="code-header">impl <a class="struct" href="struct.Encoder.html" title="struct encoding_rs::Encoder">Encoder</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.encoding" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4519-4521">source</a><h4 class="code-header">pub fn <a href="#method.encoding" class="fn">encoding</a>(&self) -> &'static <a class="struct" href="struct.Encoding.html" title="struct encoding_rs::Encoding">Encoding</a></h4></section></summary><div class="docblock"><p>The <code>Encoding</code> this <code>Encoder</code> is for.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.has_pending_state" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4526-4528">source</a><h4 class="code-header">pub fn <a href="#method.has_pending_state" class="fn">has_pending_state</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Returns <code>true</code> if this is an ISO-2022-JP encoder that’s not in the
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ASCII state and <code>false</code> otherwise.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.max_buffer_length_from_utf8_if_no_unmappables" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4539-4551">source</a><h4 class="code-header">pub fn <a href="#method.max_buffer_length_from_utf8_if_no_unmappables" class="fn">max_buffer_length_from_utf8_if_no_unmappables</a>(
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&self,
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byte_length: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>
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) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>></h4></section></summary><div class="docblock"><p>Query the worst-case output size when encoding from UTF-8 with
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replacement.</p>
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<p>Returns the size of the output buffer in bytes that will not overflow
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given the current state of the encoder and <code>byte_length</code> number of
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additional input code units if there are no unmappable characters in
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the input or <code>None</code> if <code>usize</code> would overflow.</p>
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<p>Available via the C wrapper.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.max_buffer_length_from_utf8_without_replacement" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4561-4567">source</a><h4 class="code-header">pub fn <a href="#method.max_buffer_length_from_utf8_without_replacement" class="fn">max_buffer_length_from_utf8_without_replacement</a>(
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&self,
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byte_length: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>
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) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>></h4></section></summary><div class="docblock"><p>Query the worst-case output size when encoding from UTF-8 without
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replacement.</p>
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<p>Returns the size of the output buffer in bytes that will not overflow
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given the current state of the encoder and <code>byte_length</code> number of
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additional input code units or <code>None</code> if <code>usize</code> would overflow.</p>
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<p>Available via the C wrapper.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.encode_from_utf8" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4576-4649">source</a><h4 class="code-header">pub fn <a href="#method.encode_from_utf8" class="fn">encode_from_utf8</a>(
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&mut self,
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src: &<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.str.html">str</a>,
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dst: &mut [<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.u8.html">u8</a>],
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last: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.bool.html">bool</a>
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) -> (<a class="enum" href="enum.CoderResult.html" title="enum encoding_rs::CoderResult">CoderResult</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.bool.html">bool</a>)</h4></section></summary><div class="docblock"><p>Incrementally encode into byte stream from UTF-8 with unmappable
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characters replaced with HTML (decimal) numeric character references.</p>
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<p>See the documentation of the struct for documentation for <code>encode_*</code>
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methods collectively.</p>
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<p>Available via the C wrapper.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.encode_from_utf8_to_vec" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4660-4675">source</a><h4 class="code-header">pub fn <a href="#method.encode_from_utf8_to_vec" class="fn">encode_from_utf8_to_vec</a>(
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&mut self,
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src: &<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.str.html">str</a>,
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dst: &mut <a class="struct" href="https://doc.rust-lang.org/1.76.0/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.u8.html">u8</a>>,
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last: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.bool.html">bool</a>
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) -> (<a class="enum" href="enum.CoderResult.html" title="enum encoding_rs::CoderResult">CoderResult</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.bool.html">bool</a>)</h4></section></summary><div class="docblock"><p>Incrementally encode into byte stream from UTF-8 with unmappable
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characters replaced with HTML (decimal) numeric character references.</p>
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<p>See the documentation of the struct for documentation for <code>encode_*</code>
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methods collectively.</p>
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<p>Available to Rust only and only with the <code>alloc</code> feature enabled (enabled
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by default).</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.encode_from_utf8_without_replacement" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4683-4690">source</a><h4 class="code-header">pub fn <a href="#method.encode_from_utf8_without_replacement" class="fn">encode_from_utf8_without_replacement</a>(
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&mut self,
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src: &<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.str.html">str</a>,
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dst: &mut [<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.u8.html">u8</a>],
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last: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.bool.html">bool</a>
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) -> (<a class="enum" href="enum.EncoderResult.html" title="enum encoding_rs::EncoderResult">EncoderResult</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Incrementally encode into byte stream from UTF-8 <em>without replacement</em>.</p>
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<p>See the documentation of the struct for documentation for <code>encode_*</code>
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methods collectively.</p>
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<p>Available via the C wrapper.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.encode_from_utf8_to_vec_without_replacement" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4700-4715">source</a><h4 class="code-header">pub fn <a href="#method.encode_from_utf8_to_vec_without_replacement" class="fn">encode_from_utf8_to_vec_without_replacement</a>(
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&mut self,
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src: &<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.str.html">str</a>,
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dst: &mut <a class="struct" href="https://doc.rust-lang.org/1.76.0/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.u8.html">u8</a>>,
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last: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.bool.html">bool</a>
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) -> (<a class="enum" href="enum.EncoderResult.html" title="enum encoding_rs::EncoderResult">EncoderResult</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Incrementally encode into byte stream from UTF-8 <em>without replacement</em>.</p>
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<p>See the documentation of the struct for documentation for <code>encode_*</code>
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methods collectively.</p>
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<p>Available to Rust only and only with the <code>alloc</code> feature enabled (enabled
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by default).</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.max_buffer_length_from_utf16_if_no_unmappables" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4726-4738">source</a><h4 class="code-header">pub fn <a href="#method.max_buffer_length_from_utf16_if_no_unmappables" class="fn">max_buffer_length_from_utf16_if_no_unmappables</a>(
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&self,
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u16_length: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>
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) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>></h4></section></summary><div class="docblock"><p>Query the worst-case output size when encoding from UTF-16 with
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replacement.</p>
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<p>Returns the size of the output buffer in bytes that will not overflow
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given the current state of the encoder and <code>u16_length</code> number of
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additional input code units if there are no unmappable characters in
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the input or <code>None</code> if <code>usize</code> would overflow.</p>
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<p>Available via the C wrapper.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.max_buffer_length_from_utf16_without_replacement" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4748-4754">source</a><h4 class="code-header">pub fn <a href="#method.max_buffer_length_from_utf16_without_replacement" class="fn">max_buffer_length_from_utf16_without_replacement</a>(
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&self,
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u16_length: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>
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) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>></h4></section></summary><div class="docblock"><p>Query the worst-case output size when encoding from UTF-16 without
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replacement.</p>
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<p>Returns the size of the output buffer in bytes that will not overflow
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given the current state of the encoder and <code>u16_length</code> number of
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additional input code units or <code>None</code> if <code>usize</code> would overflow.</p>
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<p>Available via the C wrapper.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.encode_from_utf16" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4763-4842">source</a><h4 class="code-header">pub fn <a href="#method.encode_from_utf16" class="fn">encode_from_utf16</a>(
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&mut self,
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src: &[<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.u16.html">u16</a>],
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dst: &mut [<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.u8.html">u8</a>],
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last: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.bool.html">bool</a>
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) -> (<a class="enum" href="enum.CoderResult.html" title="enum encoding_rs::CoderResult">CoderResult</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.bool.html">bool</a>)</h4></section></summary><div class="docblock"><p>Incrementally encode into byte stream from UTF-16 with unmappable
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characters replaced with HTML (decimal) numeric character references.</p>
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<p>See the documentation of the struct for documentation for <code>encode_*</code>
|
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methods collectively.</p>
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<p>Available via the C wrapper.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.encode_from_utf16_without_replacement" class="method"><a class="src rightside" href="../src/encoding_rs/lib.rs.html#4850-4857">source</a><h4 class="code-header">pub fn <a href="#method.encode_from_utf16_without_replacement" class="fn">encode_from_utf16_without_replacement</a>(
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&mut self,
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src: &[<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.u16.html">u16</a>],
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dst: &mut [<a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.u8.html">u8</a>],
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last: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.bool.html">bool</a>
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) -> (<a class="enum" href="enum.EncoderResult.html" title="enum encoding_rs::EncoderResult">EncoderResult</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Incrementally encode into byte stream from UTF-16 <em>without replacement</em>.</p>
|
|
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<p>See the documentation of the struct for documentation for <code>encode_*</code>
|
|
|
methods collectively.</p>
|
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<p>Available via the C wrapper.</p>
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</div></details></div></details></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-Encoder" class="impl"><a href="#impl-RefUnwindSafe-for-Encoder" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Encoder.html" title="struct encoding_rs::Encoder">Encoder</a></h3></section><section id="impl-Send-for-Encoder" class="impl"><a href="#impl-Send-for-Encoder" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.Encoder.html" title="struct encoding_rs::Encoder">Encoder</a></h3></section><section id="impl-Sync-for-Encoder" class="impl"><a href="#impl-Sync-for-Encoder" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.Encoder.html" title="struct encoding_rs::Encoder">Encoder</a></h3></section><section id="impl-Unpin-for-Encoder" class="impl"><a href="#impl-Unpin-for-Encoder" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.Encoder.html" title="struct encoding_rs::Encoder">Encoder</a></h3></section><section id="impl-UnwindSafe-for-Encoder" class="impl"><a href="#impl-UnwindSafe-for-Encoder" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Encoder.html" title="struct encoding_rs::Encoder">Encoder</a></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/any.rs.html#140">source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
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T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/any.rs.html#141">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#208">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T<div class="where">where
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#210">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.reference.html">&T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#216">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<div class="where">where
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#217">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/core/primitive.reference.html">&mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#763">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#766">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
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</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#747-749">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#756">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
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<p>That is, this conversion is whatever the implementation of
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<code><a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
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</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#803-805">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#810">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#788-790">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#795">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main></body></html> |