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<meta name="description" content="API documentation for the Rust `tables_last` fn in crate `toml`.">
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<title>toml::ser::tables_last - Rust</title>
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<p class='location'><a href='../index.html'>toml</a>::<wbr><a href='index.html'>ser</a></p><script>window.sidebarCurrent = {name: 'tables_last', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script>
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<h1 class='fqn'><span class='in-band'>Function <a href='../index.html'>toml</a>::<wbr><a href='index.html'>ser</a>::<wbr><a class="fn" href=''>tables_last</a></span><span class='out-of-band'><span id='render-detail'>
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<pre class='rust fn'>pub fn tables_last&lt;'a, I, K, V, S&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;data: &amp;'a I, <br>&nbsp;&nbsp;&nbsp;&nbsp;serializer: S<br>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;S::<a class="type" href="../../serde/ser/trait.Serializer.html#associatedtype.Ok" title="type serde::ser::Serializer::Ok">Ok</a>, S::<a class="type" href="../../serde/ser/trait.Serializer.html#associatedtype.Error" title="type serde::ser::Serializer::Error">Error</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;&amp;'a I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a>&lt;Item = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>K, V<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;K: <a class="trait" href="../../serde/ser/trait.Serialize.html" title="trait serde::ser::Serialize">Serialize</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;V: <a class="trait" href="../../serde/ser/trait.Serialize.html" title="trait serde::ser::Serialize">Serialize</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;S: <a class="trait" href="../../serde/ser/trait.Serializer.html" title="trait serde::ser::Serializer">Serializer</a>,&nbsp;</span></pre><div class='docblock'><p>Convenience function to serialize items in a map in an order valid with
TOML.</p>
<p>TOML carries the restriction that keys in a table must be serialized last if
their value is a table itself. This isn&#39;t always easy to guarantee, so this
helper can be used like so:</p>
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<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Serialize</span>)]</span>
<span class="kw">struct</span> <span class="ident">Manifest</span> {
<span class="ident">package</span>: <span class="ident">Package</span>,
<span class="attribute">#[<span class="ident">serde</span>(<span class="ident">serialize_with</span> <span class="op">=</span> <span class="string">&quot;toml::ser::tables_last&quot;</span>)]</span>
<span class="ident">dependencies</span>: <span class="ident">HashMap</span><span class="op">&lt;</span><span class="ident">String</span>, <span class="ident">Dependency</span><span class="op">&gt;</span>,
}</pre>
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