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<div class="sidebar-menu">☰</div>
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<p class='location'>Struct BindingInfo</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#fields">Fields</a><div class="sidebar-links"><a href="#structfield.binding">binding</a><a href="#structfield.style">style</a></div><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.ast">ast</a><a href="#method.pat">pat</a><a href="#method.referenced_ty_params">referenced_ty_params</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-Clone">Clone</a><a href="#impl-PartialEq">PartialEq</a><a href="#impl-Eq">Eq</a><a href="#impl-Hash">Hash</a><a href="#impl-ToTokens">ToTokens</a></div></div><p class='location'><a href='index.html'>synstructure</a></p><script>window.sidebarCurrent = {name: 'BindingInfo', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Struct <a href='index.html'>synstructure</a>::<wbr><a class="struct" href=''>BindingInfo</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>−</span>]
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</a>
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</span><a class='srclink' href='../src/synstructure/lib.rs.html#298-310' title='goto source code'>[src]</a></span></h1>
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<pre class='rust struct'>pub struct BindingInfo<'a> {
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pub binding: <a class="struct" href="../proc_macro2/struct.Ident.html" title="struct proc_macro2::Ident">Ident</a>,
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pub style: <a class="enum" href="../synstructure/enum.BindStyle.html" title="enum synstructure::BindStyle">BindStyle</a>,
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// some fields omitted
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}</pre><div class='docblock'><p>Information about a specific binding. This contains both an <code>Ident</code>
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reference to the given field, and the syn <code>&'a Field</code> descriptor for that
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field.</p>
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<p>This type supports <code>quote::ToTokens</code>, so can be directly used within the
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<code>quote!</code> macro. It expands to a reference to the matched field.</p>
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</div><h2 id='fields' class='fields small-section-header'>
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Fields<a href='#fields' class='anchor'></a></h2><span id="structfield.binding" class="structfield small-section-header">
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<a href="#structfield.binding" class="anchor field"></a>
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<span id="binding.v" class='invisible'>
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<code>binding: <a class="struct" href="../proc_macro2/struct.Ident.html" title="struct proc_macro2::Ident">Ident</a></code>
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</span></span><div class='docblock'><p>The name which this BindingInfo will bind to.</p>
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</div><span id="structfield.style" class="structfield small-section-header">
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<a href="#structfield.style" class="anchor field"></a>
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<span id="style.v" class='invisible'>
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<code>style: <a class="enum" href="../synstructure/enum.BindStyle.html" title="enum synstructure::BindStyle">BindStyle</a></code>
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</span></span><div class='docblock'><p>The type of binding which this BindingInfo will create.</p>
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</div>
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<h2 id='methods' class='small-section-header'>
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Methods<a href='#methods' class='anchor'></a>
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</h2>
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<h3 id='impl' class='impl'><span class='in-band'><code>impl<'a> <a class="struct" href="../synstructure/struct.BindingInfo.html" title="struct synstructure::BindingInfo">BindingInfo</a><'a></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#318-393' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.ast' class="method"><span id='ast.v' class='invisible'><code>pub fn <a href='#method.ast' class='fnname'>ast</a>(&self) -> &'a <a class="struct" href="../syn/data/struct.Field.html" title="struct syn::data::Field">Field</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#321-323' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns a reference to the underlying <code>syn</code> AST node which this
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<code>BindingInfo</code> references</p>
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</div><h4 id='method.pat' class="method"><span id='pat.v' class='invisible'><code>pub fn <a href='#method.pat' class='fnname'>pat</a>(&self) -> <a class="struct" href="../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#350-357' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Generates the pattern fragment for this field binding.</p>
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<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
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<pre class="rust rust-example-rendered">
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<span class="kw">let</span> <span class="ident">di</span>: <span class="ident">syn</span>::<span class="ident">DeriveInput</span> <span class="op">=</span> <span class="macro">parse_quote</span><span class="macro">!</span> {
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<span class="kw">enum</span> <span class="ident">A</span> {
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<span class="ident">B</span>{ <span class="ident">a</span>: <span class="ident">i32</span>, <span class="ident">b</span>: <span class="ident">i32</span> },
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<span class="ident">C</span>(<span class="ident">u32</span>),
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}
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};
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<span class="kw">let</span> <span class="ident">s</span> <span class="op">=</span> <span class="ident">Structure</span>::<span class="ident">new</span>(<span class="kw-2">&</span><span class="ident">di</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(
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<span class="ident">s</span>.<span class="ident">variants</span>()[<span class="number">0</span>].<span class="ident">bindings</span>()[<span class="number">0</span>].<span class="ident">pat</span>().<span class="ident">to_string</span>(),
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<span class="macro">quote</span><span class="macro">!</span> {
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<span class="kw-2">ref</span> <span class="ident">__binding_0</span>
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}.<span class="ident">to_string</span>()
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);</pre>
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</div><h4 id='method.referenced_ty_params' class="method"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>></span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>></h3><code class="content"><span class="where fmt-newline">impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a> for <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>></span></code></div></div><span id='referenced_ty_params.v' class='invisible'><code>pub fn <a href='#method.referenced_ty_params' class='fnname'>referenced_ty_params</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><&'a <a class="struct" href="../proc_macro2/struct.Ident.html" title="struct proc_macro2::Ident">Ident</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#390-392' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns a list of the type parameters which are referenced in this
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field's type.</p>
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<h1 id="caveat" class="section-header"><a href="#caveat">Caveat</a></h1>
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<p>If the field contains any macros in type position, all parameters will
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be considered bound. This is because we cannot determine which type
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parameters are bound by type macros.</p>
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<h1 id="example-1" class="section-header"><a href="#example-1">Example</a></h1>
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<pre class="rust rust-example-rendered">
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<span class="kw">let</span> <span class="ident">di</span>: <span class="ident">syn</span>::<span class="ident">DeriveInput</span> <span class="op">=</span> <span class="macro">parse_quote</span><span class="macro">!</span> {
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<span class="kw">struct</span> <span class="ident">A</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">U</span><span class="op">></span> {
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<span class="ident">a</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>,
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<span class="ident">b</span>: <span class="ident">U</span>,
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}
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};
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<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">s</span> <span class="op">=</span> <span class="ident">Structure</span>::<span class="ident">new</span>(<span class="kw-2">&</span><span class="ident">di</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(
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<span class="ident">s</span>.<span class="ident">variants</span>()[<span class="number">0</span>].<span class="ident">bindings</span>()[<span class="number">0</span>].<span class="ident">referenced_ty_params</span>(),
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<span class="kw-2">&</span>[<span class="kw-2">&</span>(<span class="ident">syn</span>::<span class="ident">Ident</span>::<span class="ident">new</span>(<span class="string">"T"</span>, <span class="ident">proc_macro2</span>::<span class="ident">Span</span>::<span class="ident">call_site</span>()))]
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);</pre>
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</div></div>
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<h2 id='implementations' class='small-section-header'>
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Trait Implementations<a href='#implementations' class='anchor'></a>
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</h2>
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<h3 id='impl-Debug' class='impl'><span class='in-band'><code>impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../synstructure/struct.BindingInfo.html" title="struct synstructure::BindingInfo">BindingInfo</a><'a></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#297' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, __arg_0: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#297' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
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</div></div><h3 id='impl-Clone' class='impl'><span class='in-band'><code>impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../synstructure/struct.BindingInfo.html" title="struct synstructure::BindingInfo">BindingInfo</a><'a></code><a href='#impl-Clone' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#297' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.clone' class="method"><span id='clone.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="struct" href="../synstructure/struct.BindingInfo.html" title="struct synstructure::BindingInfo">BindingInfo</a><'a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#297' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
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</div><h4 id='method.clone_from' class="method"><span id='clone_from.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#112-114' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
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</div></div><h3 id='impl-PartialEq' class='impl'><span class='in-band'><code>impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a> for <a class="struct" href="../synstructure/struct.BindingInfo.html" title="struct synstructure::BindingInfo">BindingInfo</a><'a></code><a href='#impl-PartialEq' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#297' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.eq' class="method"><span id='eq.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq' class='fnname'>eq</a>(&self, __arg_0: &<a class="struct" href="../synstructure/struct.BindingInfo.html" title="struct synstructure::BindingInfo">BindingInfo</a><'a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#297' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
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</div><h4 id='method.ne' class="method"><span id='ne.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&self, __arg_0: &<a class="struct" href="../synstructure/struct.BindingInfo.html" title="struct synstructure::BindingInfo">BindingInfo</a><'a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#297' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>This method tests for <code>!=</code>.</p>
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</div></div><h3 id='impl-Eq' class='impl'><span class='in-band'><code>impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="../synstructure/struct.BindingInfo.html" title="struct synstructure::BindingInfo">BindingInfo</a><'a></code><a href='#impl-Eq' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#297' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'></div><h3 id='impl-Hash' class='impl'><span class='in-band'><code>impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> for <a class="struct" href="../synstructure/struct.BindingInfo.html" title="struct synstructure::BindingInfo">BindingInfo</a><'a></code><a href='#impl-Hash' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#297' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.hash' class="method"><span id='hash.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#tymethod.hash' class='fnname'>hash</a><__H: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="trait core::hash::Hasher">Hasher</a>>(&self, __arg_0: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>__H)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#297' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Feeds this value into the given [<code>Hasher</code>]. <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#tymethod.hash">Read more</a></p>
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</div><h4 id='method.hash_slice' class="method"><span id='hash_slice.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#method.hash_slice' class='fnname'>hash_slice</a><H>(data: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[Self]</a>, state: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>H) <span class="where fmt-newline">where<br> H: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="trait core::hash::Hasher">Hasher</a>, </span></code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.3.0'>1.3.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/hash/mod.rs.html#202-208' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Feeds a slice of this type into the given [<code>Hasher</code>]. <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#method.hash_slice">Read more</a></p>
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</div></div><h3 id='impl-ToTokens' class='impl'><span class='in-band'><code>impl<'a> <a class="trait" href="../quote/to_tokens/trait.ToTokens.html" title="trait quote::to_tokens::ToTokens">ToTokens</a> for <a class="struct" href="../synstructure/struct.BindingInfo.html" title="struct synstructure::BindingInfo">BindingInfo</a><'a></code><a href='#impl-ToTokens' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#312-316' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.to_tokens' class="method"><span id='to_tokens.v' class='invisible'><code>fn <a href='../quote/to_tokens/trait.ToTokens.html#tymethod.to_tokens' class='fnname'>to_tokens</a>(&self, tokens: &mut <a class="struct" href="../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/synstructure/lib.rs.html#313-315' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Write <code>self</code> to the given <code>TokenStream</code>. <a href="../quote/to_tokens/trait.ToTokens.html#tymethod.to_tokens">Read more</a></p>
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</div><h4 id='method.into_token_stream' class="method"><span id='into_token_stream.v' class='invisible'><code>fn <a href='../quote/to_tokens/trait.ToTokens.html#method.into_token_stream' class='fnname'>into_token_stream</a>(self) -> <a class="struct" href="../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/quote/to_tokens.rs.html#65-72' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Convert <code>self</code> directly into a <code>TokenStream</code> object. <a href="../quote/to_tokens/trait.ToTokens.html#method.into_token_stream">Read more</a></p>
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