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<p class='location'>Enum TokenTree</p><div class="block items"><ul><li><a href="#variants">Variants</a></li><li><a href="#implementations">Trait Implementations</a></li></ul></div><p class='location'><a href='index.html'>syn</a></p><script>window.sidebarCurrent = {name: 'TokenTree', ty: 'enum', relpath: ''};</script><script defer src="sidebar-items.js"></script>
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<h1 class='fqn'><span class='in-band'>Enum <a href='index.html'>syn</a>::<wbr><a class="enum" href=''>TokenTree</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>−</span>]
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</span><a class='srclink' href='../src/syn/mac.rs.html#28-33' title='goto source code'>[src]</a></span></h1>
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<pre class='rust enum'>pub enum TokenTree {
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Token(<a class="enum" href="../syn/enum.Token.html" title="enum syn::Token">Token</a>),
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Delimited(<a class="struct" href="../syn/struct.Delimited.html" title="struct syn::Delimited">Delimited</a>),
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}</pre><div class='docblock'><p>When the main rust parser encounters a syntax-extension invocation, it
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parses the arguments to the invocation as a token-tree. This is a very
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loose structure, such that all sorts of different AST-fragments can
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be passed to syntax extensions using a uniform type.</p>
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<p>If the syntax extension is an MBE macro, it will attempt to match its
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LHS token tree against the provided token tree, and if it finds a
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match, will transcribe the RHS token tree, splicing in any captured
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<code>macro_parser::matched_nonterminals</code> into the <code>SubstNt</code>s it finds.</p>
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<p>The RHS of an MBE macro is the only place <code>SubstNt</code>s are substituted.
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Nothing special happens to misnamed or misplaced <code>SubstNt</code>s.</p>
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</div><h2 id='variants' class='variants'>Variants</h2>
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<span id='variant.Token' class='variant'><span id='Token.v' class='invisible'><code>Token(<a class="enum" href="../syn/enum.Token.html" title="enum syn::Token">Token</a>)</code></span></span><div class='docblock'><p>A single token</p>
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</div><span id='variant.Delimited' class='variant'><span id='Delimited.v' class='invisible'><code>Delimited(<a class="struct" href="../syn/struct.Delimited.html" title="struct syn::Delimited">Delimited</a>)</code></span></span><div class='docblock'><p>A delimited sequence of token trees</p>
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</div><h2 id='implementations'>Trait Implementations</h2><h3 class='impl'><span class='in-band'><code>impl <a class="trait" href="../quote/to_tokens/trait.ToTokens.html" title="trait quote::to_tokens::ToTokens">ToTokens</a> for <a class="enum" href="../syn/enum.TokenTree.html" title="enum syn::TokenTree">TokenTree</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/mac.rs.html#315-322' 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="../quote/tokens/struct.Tokens.html" title="struct quote::tokens::Tokens">Tokens</a>)</code></span></h4>
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<div class='docblock'><p>Write <code>self</code> to the given <code>Tokens</code>. <a href="../quote/to_tokens/trait.ToTokens.html#tymethod.to_tokens">Read more</a></p>
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</div></div><h3 class='impl'><span class='in-band'><code>impl <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="enum" href="../syn/enum.TokenTree.html" title="enum syn::TokenTree">TokenTree</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/mac.rs.html#27' 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></h4>
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<div class='docblock'><p>Formats the value using the given formatter.</p>
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</div></div><h3 class='impl'><span class='in-band'><code>impl <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="enum" href="../syn/enum.TokenTree.html" title="enum syn::TokenTree">TokenTree</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/mac.rs.html#27' 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="enum" href="../syn/enum.TokenTree.html" title="enum syn::TokenTree">TokenTree</a></code></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: &Self)</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></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 class='impl'><span class='in-band'><code>impl <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="enum" href="../syn/enum.TokenTree.html" title="enum syn::TokenTree">TokenTree</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/mac.rs.html#27' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'></div><h3 class='impl'><span class='in-band'><code>impl <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="enum" href="../syn/enum.TokenTree.html" title="enum syn::TokenTree">TokenTree</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/mac.rs.html#27' 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="enum" href="../syn/enum.TokenTree.html" title="enum syn::TokenTree">TokenTree</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></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="enum" href="../syn/enum.TokenTree.html" title="enum syn::TokenTree">TokenTree</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h4>
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<div class='docblock'><p>This method tests for <code>!=</code>.</p>
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</div></div><h3 class='impl'><span class='in-band'><code>impl <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="enum" href="../syn/enum.TokenTree.html" title="enum syn::TokenTree">TokenTree</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/mac.rs.html#27' 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: &mut __H)</code></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: &mut 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><div class='since' title='Stable since Rust version 1.3.0'>1.3.0</div></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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