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</pre><pre class="rust"><code><span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>;
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::punctuated::Punctuated</span>;
<span class="macro">ast_struct!</span> {
<span class="doccomment">/// An enum variant.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// *This type is available only if Syn is built with the `&quot;derive&quot;` or `&quot;full&quot;`</span>
<span class="doccomment">/// feature.*</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;full&quot;</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;derive&quot;</span>))))]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Variant</span> {
<span class="doccomment">/// Attributes tagged on the variant.</span>
<span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Attribute</span><span class="op">&gt;</span>,
<span class="doccomment">/// Name of the variant.</span>
<span class="kw">pub</span> <span class="ident">ident</span>: <span class="ident">Ident</span>,
<span class="doccomment">/// Content stored in the variant.</span>
<span class="kw">pub</span> <span class="ident">fields</span>: <span class="ident">Fields</span>,
<span class="doccomment">/// Explicit discriminant: `Variant = 1`</span>
<span class="kw">pub</span> <span class="ident">discriminant</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span>(<span class="macro">Token!</span>[<span class="op">=</span>], <span class="ident">Expr</span>)<span class="op">&gt;</span>,
}
}
<span class="macro">ast_enum_of_structs!</span> {
<span class="doccomment">/// Data stored within an enum variant or struct.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// *This type is available only if Syn is built with the `&quot;derive&quot;` or `&quot;full&quot;`</span>
<span class="doccomment">/// feature.*</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Syntax tree enum</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This type is a [syntax tree enum].</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [syntax tree enum]: Expr#syntax-tree-enums</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;full&quot;</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;derive&quot;</span>))))]</span>
<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">Fields</span> {
<span class="doccomment">/// Named fields of a struct or struct variant such as `Point { x: f64,</span>
<span class="doccomment">/// y: f64 }`.</span>
<span class="ident">Named</span>(<span class="ident">FieldsNamed</span>),
<span class="doccomment">/// Unnamed fields of a tuple struct or tuple variant such as `Some(T)`.</span>
<span class="ident">Unnamed</span>(<span class="ident">FieldsUnnamed</span>),
<span class="doccomment">/// Unit struct or unit variant such as `None`.</span>
<span class="ident">Unit</span>,
}
}
<span class="macro">ast_struct!</span> {
<span class="doccomment">/// Named fields of a struct or struct variant such as `Point { x: f64,</span>
<span class="doccomment">/// y: f64 }`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// *This type is available only if Syn is built with the `&quot;derive&quot;` or</span>
<span class="doccomment">/// `&quot;full&quot;` feature.*</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;full&quot;</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;derive&quot;</span>))))]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">FieldsNamed</span> {
<span class="kw">pub</span> <span class="ident">brace_token</span>: <span class="ident">token::Brace</span>,
<span class="kw">pub</span> <span class="ident">named</span>: <span class="ident">Punctuated</span><span class="op">&lt;</span><span class="ident">Field</span>, <span class="macro">Token!</span>[,]<span class="op">&gt;</span>,
}
}
<span class="macro">ast_struct!</span> {
<span class="doccomment">/// Unnamed fields of a tuple struct or tuple variant such as `Some(T)`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// *This type is available only if Syn is built with the `&quot;derive&quot;` or</span>
<span class="doccomment">/// `&quot;full&quot;` feature.*</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;full&quot;</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;derive&quot;</span>))))]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">FieldsUnnamed</span> {
<span class="kw">pub</span> <span class="ident">paren_token</span>: <span class="ident">token::Paren</span>,
<span class="kw">pub</span> <span class="ident">unnamed</span>: <span class="ident">Punctuated</span><span class="op">&lt;</span><span class="ident">Field</span>, <span class="macro">Token!</span>[,]<span class="op">&gt;</span>,
}
}
<span class="kw">impl</span> <span class="ident">Fields</span> {
<span class="doccomment">/// Get an iterator over the borrowed [`Field`] items in this object. This</span>
<span class="doccomment">/// iterator can be used to iterate over a named or unnamed struct or</span>
<span class="doccomment">/// variant&#39;s fields uniformly.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">iter</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="ident">punctuated::Iter</span><span class="op">&lt;</span><span class="ident">Field</span><span class="op">&gt;</span> {
<span class="kw">match</span> <span class="self">self</span> {
<span class="ident">Fields::Unit</span> =&gt; <span class="ident"><span class="kw">crate</span>::punctuated::empty_punctuated_iter</span>(),
<span class="ident">Fields::Named</span>(<span class="ident">f</span>) =&gt; <span class="ident">f</span>.<span class="ident">named</span>.<span class="ident">iter</span>(),
<span class="ident">Fields::Unnamed</span>(<span class="ident">f</span>) =&gt; <span class="ident">f</span>.<span class="ident">unnamed</span>.<span class="ident">iter</span>(),
}
}
<span class="doccomment">/// Get an iterator over the mutably borrowed [`Field`] items in this</span>
<span class="doccomment">/// object. This iterator can be used to iterate over a named or unnamed</span>
<span class="doccomment">/// struct or variant&#39;s fields uniformly.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">iter_mut</span>(<span class="kw-2">&amp;mut</span> <span class="self">self</span>) -&gt; <span class="ident">punctuated::IterMut</span><span class="op">&lt;</span><span class="ident">Field</span><span class="op">&gt;</span> {
<span class="kw">match</span> <span class="self">self</span> {
<span class="ident">Fields::Unit</span> =&gt; <span class="ident"><span class="kw">crate</span>::punctuated::empty_punctuated_iter_mut</span>(),
<span class="ident">Fields::Named</span>(<span class="ident">f</span>) =&gt; <span class="ident">f</span>.<span class="ident">named</span>.<span class="ident">iter_mut</span>(),
<span class="ident">Fields::Unnamed</span>(<span class="ident">f</span>) =&gt; <span class="ident">f</span>.<span class="ident">unnamed</span>.<span class="ident">iter_mut</span>(),
}
}
<span class="doccomment">/// Returns the number of fields.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">len</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="ident">usize</span> {
<span class="kw">match</span> <span class="self">self</span> {
<span class="ident">Fields::Unit</span> =&gt; <span class="number">0</span>,
<span class="ident">Fields::Named</span>(<span class="ident">f</span>) =&gt; <span class="ident">f</span>.<span class="ident">named</span>.<span class="ident">len</span>(),
<span class="ident">Fields::Unnamed</span>(<span class="ident">f</span>) =&gt; <span class="ident">f</span>.<span class="ident">unnamed</span>.<span class="ident">len</span>(),
}
}
<span class="doccomment">/// Returns `true` if there are zero fields.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">is_empty</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="ident">bool</span> {
<span class="kw">match</span> <span class="self">self</span> {
<span class="ident">Fields::Unit</span> =&gt; <span class="bool-val">true</span>,
<span class="ident">Fields::Named</span>(<span class="ident">f</span>) =&gt; <span class="ident">f</span>.<span class="ident">named</span>.<span class="ident">is_empty</span>(),
<span class="ident">Fields::Unnamed</span>(<span class="ident">f</span>) =&gt; <span class="ident">f</span>.<span class="ident">unnamed</span>.<span class="ident">is_empty</span>(),
}
}
}
<span class="kw">impl</span> <span class="ident">IntoIterator</span> <span class="kw">for</span> <span class="ident">Fields</span> {
<span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> <span class="ident">Field</span>;
<span class="kw">type</span> <span class="ident">IntoIter</span> <span class="op">=</span> <span class="ident">punctuated::IntoIter</span><span class="op">&lt;</span><span class="ident">Field</span><span class="op">&gt;</span>;
<span class="kw">fn</span> <span class="ident">into_iter</span>(<span class="self">self</span>) -&gt; <span class="ident"><span class="self">Self</span>::IntoIter</span> {
<span class="kw">match</span> <span class="self">self</span> {
<span class="ident">Fields::Unit</span> =&gt; <span class="ident">Punctuated</span>::<span class="op">&lt;</span><span class="ident">Field</span>, ()<span class="op">&gt;</span><span class="ident">::new</span>().<span class="ident">into_iter</span>(),
<span class="ident">Fields::Named</span>(<span class="ident">f</span>) =&gt; <span class="ident">f</span>.<span class="ident">named</span>.<span class="ident">into_iter</span>(),
<span class="ident">Fields::Unnamed</span>(<span class="ident">f</span>) =&gt; <span class="ident">f</span>.<span class="ident">unnamed</span>.<span class="ident">into_iter</span>(),
}
}
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span> <span class="ident">IntoIterator</span> <span class="kw">for</span> <span class="kw-2">&amp;</span><span class="lifetime">&#39;a</span> <span class="ident">Fields</span> {
<span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="lifetime">&#39;a</span> <span class="ident">Field</span>;
<span class="kw">type</span> <span class="ident">IntoIter</span> <span class="op">=</span> <span class="ident">punctuated::Iter</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span>, <span class="ident">Field</span><span class="op">&gt;</span>;
<span class="kw">fn</span> <span class="ident">into_iter</span>(<span class="self">self</span>) -&gt; <span class="ident"><span class="self">Self</span>::IntoIter</span> {
<span class="self">self</span>.<span class="ident">iter</span>()
}
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span><span class="op">&gt;</span> <span class="ident">IntoIterator</span> <span class="kw">for</span> <span class="kw-2">&amp;</span><span class="lifetime">&#39;a</span> <span class="kw-2">mut</span> <span class="ident">Fields</span> {
<span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="lifetime">&#39;a</span> <span class="kw-2">mut</span> <span class="ident">Field</span>;
<span class="kw">type</span> <span class="ident">IntoIter</span> <span class="op">=</span> <span class="ident">punctuated::IterMut</span><span class="op">&lt;</span><span class="lifetime">&#39;a</span>, <span class="ident">Field</span><span class="op">&gt;</span>;
<span class="kw">fn</span> <span class="ident">into_iter</span>(<span class="self">self</span>) -&gt; <span class="ident"><span class="self">Self</span>::IntoIter</span> {
<span class="self">self</span>.<span class="ident">iter_mut</span>()
}
}
<span class="macro">ast_struct!</span> {
<span class="doccomment">/// A field of a struct or enum variant.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// *This type is available only if Syn is built with the `&quot;derive&quot;` or `&quot;full&quot;`</span>
<span class="doccomment">/// feature.*</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;full&quot;</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;derive&quot;</span>))))]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Field</span> {
<span class="doccomment">/// Attributes tagged on the field.</span>
<span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Attribute</span><span class="op">&gt;</span>,
<span class="doccomment">/// Visibility of the field.</span>
<span class="kw">pub</span> <span class="ident">vis</span>: <span class="ident">Visibility</span>,
<span class="doccomment">/// Name of the field, if any.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Fields of tuple structs have no names.</span>
<span class="kw">pub</span> <span class="ident">ident</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Ident</span><span class="op">&gt;</span>,
<span class="kw">pub</span> <span class="ident">colon_token</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="macro">Token!</span>[:]<span class="op">&gt;</span>,
<span class="doccomment">/// Type of the field.</span>
<span class="kw">pub</span> <span class="ident">ty</span>: <span class="ident">Type</span>,
}
}
<span class="macro">ast_enum_of_structs!</span> {
<span class="doccomment">/// The visibility level of an item: inherited or `pub` or</span>
<span class="doccomment">/// `pub(restricted)`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// *This type is available only if Syn is built with the `&quot;derive&quot;` or `&quot;full&quot;`</span>
<span class="doccomment">/// feature.*</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Syntax tree enum</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This type is a [syntax tree enum].</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [syntax tree enum]: Expr#syntax-tree-enums</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;full&quot;</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;derive&quot;</span>))))]</span>
<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">Visibility</span> {
<span class="doccomment">/// A public visibility level: `pub`.</span>
<span class="ident">Public</span>(<span class="ident">VisPublic</span>),
<span class="doccomment">/// A crate-level visibility: `crate`.</span>
<span class="ident">Crate</span>(<span class="ident">VisCrate</span>),
<span class="doccomment">/// A visibility level restricted to some path: `pub(self)` or</span>
<span class="doccomment">/// `pub(super)` or `pub(crate)` or `pub(in some::module)`.</span>
<span class="ident">Restricted</span>(<span class="ident">VisRestricted</span>),
<span class="doccomment">/// An inherited visibility, which usually means private.</span>
<span class="ident">Inherited</span>,
}
}
<span class="macro">ast_struct!</span> {
<span class="doccomment">/// A public visibility level: `pub`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// *This type is available only if Syn is built with the `&quot;derive&quot;` or</span>
<span class="doccomment">/// `&quot;full&quot;` feature.*</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;full&quot;</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;derive&quot;</span>))))]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">VisPublic</span> {
<span class="kw">pub</span> <span class="ident">pub_token</span>: <span class="macro">Token!</span>[<span class="kw">pub</span>],
}
}
<span class="macro">ast_struct!</span> {
<span class="doccomment">/// A crate-level visibility: `crate`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// *This type is available only if Syn is built with the `&quot;derive&quot;` or</span>
<span class="doccomment">/// `&quot;full&quot;` feature.*</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;full&quot;</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;derive&quot;</span>))))]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">VisCrate</span> {
<span class="kw">pub</span> <span class="ident">crate_token</span>: <span class="macro">Token!</span>[<span class="kw">crate</span>],
}
}
<span class="macro">ast_struct!</span> {
<span class="doccomment">/// A visibility level restricted to some path: `pub(self)` or</span>
<span class="doccomment">/// `pub(super)` or `pub(crate)` or `pub(in some::module)`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// *This type is available only if Syn is built with the `&quot;derive&quot;` or</span>
<span class="doccomment">/// `&quot;full&quot;` feature.*</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;full&quot;</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;derive&quot;</span>))))]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">VisRestricted</span> {
<span class="kw">pub</span> <span class="ident">pub_token</span>: <span class="macro">Token!</span>[<span class="kw">pub</span>],
<span class="kw">pub</span> <span class="ident">paren_token</span>: <span class="ident">token::Paren</span>,
<span class="kw">pub</span> <span class="ident">in_token</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="macro">Token!</span>[<span class="kw">in</span>]<span class="op">&gt;</span>,
<span class="kw">pub</span> <span class="ident">path</span>: <span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Path</span><span class="op">&gt;</span>,
}
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;parsing&quot;</span>)]</span>
<span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">parsing</span> {
<span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>;
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::ext::IdentExt</span>;
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::parse::discouraged::Speculative</span>;
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>, <span class="prelude-ty">Result</span>};
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;parsing&quot;</span>)))]</span>
<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">Variant</span> {
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="self">Self</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="ident">_visibility</span>: <span class="ident">Visibility</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="ident">ident</span>: <span class="ident">Ident</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="ident">fields</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Brace</span>) {
<span class="kw">let</span> <span class="ident">fields</span> <span class="op">=</span> <span class="ident">parse_braced</span>(<span class="ident">input</span>, <span class="kw-2">&amp;mut</span> <span class="ident">attrs</span>)<span class="question-mark">?</span>;
<span class="ident">Fields::Named</span>(<span class="ident">fields</span>)
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Paren</span>) {
<span class="ident">Fields::Unnamed</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>)
} <span class="kw">else</span> {
<span class="ident">Fields::Unit</span>
};
<span class="kw">let</span> <span class="ident">discriminant</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">=</span>]) {
<span class="kw">let</span> <span class="ident">eq_token</span>: <span class="macro">Token!</span>[<span class="op">=</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="ident">discriminant</span>: <span class="ident">Expr</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
<span class="prelude-val">Some</span>((<span class="ident">eq_token</span>, <span class="ident">discriminant</span>))
} <span class="kw">else</span> {
<span class="prelude-val">None</span>
};
<span class="prelude-val">Ok</span>(<span class="ident">Variant</span> {
<span class="ident">attrs</span>,
<span class="ident">ident</span>,
<span class="ident">fields</span>,
<span class="ident">discriminant</span>,
})
}
}
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;parsing&quot;</span>)))]</span>
<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">FieldsNamed</span> {
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="self">Self</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="ident">content</span>;
<span class="prelude-val">Ok</span>(<span class="ident">FieldsNamed</span> {
<span class="ident">brace_token</span>: <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
<span class="ident">named</span>: <span class="ident">content</span>.<span class="ident">parse_terminated</span>(<span class="ident">Field::parse_named</span>)<span class="question-mark">?</span>,
})
}
}
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;parsing&quot;</span>)))]</span>
<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">FieldsUnnamed</span> {
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="self">Self</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="ident">content</span>;
<span class="prelude-val">Ok</span>(<span class="ident">FieldsUnnamed</span> {
<span class="ident">paren_token</span>: <span class="macro">parenthesized!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
<span class="ident">unnamed</span>: <span class="ident">content</span>.<span class="ident">parse_terminated</span>(<span class="ident">Field::parse_unnamed</span>)<span class="question-mark">?</span>,
})
}
}
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">parse_braced</span>(
<span class="ident">input</span>: <span class="ident">ParseStream</span>,
<span class="ident">attrs</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Attribute</span><span class="op">&gt;</span>,
) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">FieldsNamed</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="ident">content</span>;
<span class="kw">let</span> <span class="ident">brace_token</span> <span class="op">=</span> <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>);
<span class="ident">attr::parsing::parse_inner</span>(<span class="kw-2">&amp;</span><span class="ident">content</span>, <span class="ident">attrs</span>)<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="ident">named</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse_terminated</span>(<span class="ident">Field::parse_named</span>)<span class="question-mark">?</span>;
<span class="prelude-val">Ok</span>(<span class="ident">FieldsNamed</span> { <span class="ident">brace_token</span>, <span class="ident">named</span> })
}
<span class="kw">impl</span> <span class="ident">Field</span> {
<span class="doccomment">/// Parses a named (braced struct) field.</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;parsing&quot;</span>)))]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">parse_named</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="self">Self</span><span class="op">&gt;</span> {
<span class="prelude-val">Ok</span>(<span class="ident">Field</span> {
<span class="ident">attrs</span>: <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>,
<span class="ident">vis</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
<span class="ident">ident</span>: <span class="prelude-val">Some</span>(<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">_</span>]) {
<span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Ident::parse_any</span>)
} <span class="kw">else</span> {
<span class="ident">input</span>.<span class="ident">parse</span>()
}<span class="question-mark">?</span>),
<span class="ident">colon_token</span>: <span class="prelude-val">Some</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>),
<span class="ident">ty</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
})
}
<span class="doccomment">/// Parses an unnamed (tuple struct) field.</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;parsing&quot;</span>)))]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">parse_unnamed</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="self">Self</span><span class="op">&gt;</span> {
<span class="prelude-val">Ok</span>(<span class="ident">Field</span> {
<span class="ident">attrs</span>: <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>,
<span class="ident">vis</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
<span class="ident">ident</span>: <span class="prelude-val">None</span>,
<span class="ident">colon_token</span>: <span class="prelude-val">None</span>,
<span class="ident">ty</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
})
}
}
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;parsing&quot;</span>)))]</span>
<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">Visibility</span> {
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="self">Self</span><span class="op">&gt;</span> {
<span class="comment">// Recognize an empty None-delimited group, as produced by a $:vis</span>
<span class="comment">// matcher that matched no tokens.</span>
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Group</span>) {
<span class="kw">let</span> <span class="ident">ahead</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">fork</span>();
<span class="kw">let</span> <span class="ident">group</span> <span class="op">=</span> <span class="ident"><span class="kw">crate</span>::group::parse_group</span>(<span class="kw-2">&amp;</span><span class="ident">ahead</span>)<span class="question-mark">?</span>;
<span class="kw">if</span> <span class="ident">group</span>.<span class="ident">content</span>.<span class="ident">is_empty</span>() {
<span class="ident">input</span>.<span class="ident">advance_to</span>(<span class="kw-2">&amp;</span><span class="ident">ahead</span>);
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Visibility::Inherited</span>);
}
}
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">pub</span>]) {
<span class="ident"><span class="self">Self</span>::parse_pub</span>(<span class="ident">input</span>)
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">crate</span>]) {
<span class="ident"><span class="self">Self</span>::parse_crate</span>(<span class="ident">input</span>)
} <span class="kw">else</span> {
<span class="prelude-val">Ok</span>(<span class="ident">Visibility::Inherited</span>)
}
}
}
<span class="kw">impl</span> <span class="ident">Visibility</span> {
<span class="kw">fn</span> <span class="ident">parse_pub</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="self">Self</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="ident">pub_token</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>::<span class="op">&lt;</span><span class="macro">Token!</span>[<span class="kw">pub</span>]<span class="op">&gt;</span>()<span class="question-mark">?</span>;
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Paren</span>) {
<span class="kw">let</span> <span class="ident">ahead</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">fork</span>();
<span class="kw">let</span> <span class="ident">content</span>;
<span class="kw">let</span> <span class="ident">paren_token</span> <span class="op">=</span> <span class="macro">parenthesized!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">ahead</span>);
<span class="kw">if</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">crate</span>])
<span class="op">|</span><span class="op">|</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="self">self</span>])
<span class="op">|</span><span class="op">|</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">super</span>])
{
<span class="kw">let</span> <span class="ident">path</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Ident::parse_any</span>)<span class="question-mark">?</span>;
<span class="comment">// Ensure there are no additional tokens within `content`.</span>
<span class="comment">// Without explicitly checking, we may misinterpret a tuple</span>
<span class="comment">// field as a restricted visibility, causing a parse error.</span>
<span class="comment">// e.g. `pub (crate::A, crate::B)` (Issue #720).</span>
<span class="kw">if</span> <span class="ident">content</span>.<span class="ident">is_empty</span>() {
<span class="ident">input</span>.<span class="ident">advance_to</span>(<span class="kw-2">&amp;</span><span class="ident">ahead</span>);
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Visibility::Restricted</span>(<span class="ident">VisRestricted</span> {
<span class="ident">pub_token</span>,
<span class="ident">paren_token</span>,
<span class="ident">in_token</span>: <span class="prelude-val">None</span>,
<span class="ident">path</span>: <span class="ident">Box::new</span>(<span class="ident">Path::from</span>(<span class="ident">path</span>)),
}));
}
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">in</span>]) {
<span class="kw">let</span> <span class="ident">in_token</span>: <span class="macro">Token!</span>[<span class="kw">in</span>] <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="ident">path</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Path::parse_mod_style</span>)<span class="question-mark">?</span>;
<span class="ident">input</span>.<span class="ident">advance_to</span>(<span class="kw-2">&amp;</span><span class="ident">ahead</span>);
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Visibility::Restricted</span>(<span class="ident">VisRestricted</span> {
<span class="ident">pub_token</span>,
<span class="ident">paren_token</span>,
<span class="ident">in_token</span>: <span class="prelude-val">Some</span>(<span class="ident">in_token</span>),
<span class="ident">path</span>: <span class="ident">Box::new</span>(<span class="ident">path</span>),
}));
}
}
<span class="prelude-val">Ok</span>(<span class="ident">Visibility::Public</span>(<span class="ident">VisPublic</span> { <span class="ident">pub_token</span> }))
}
<span class="kw">fn</span> <span class="ident">parse_crate</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="self">Self</span><span class="op">&gt;</span> {
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek2</span>(<span class="macro">Token!</span>[::]) {
<span class="prelude-val">Ok</span>(<span class="ident">Visibility::Inherited</span>)
} <span class="kw">else</span> {
<span class="prelude-val">Ok</span>(<span class="ident">Visibility::Crate</span>(<span class="ident">VisCrate</span> {
<span class="ident">crate_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
}))
}
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;full&quot;</span>)]</span>
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">is_some</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="ident">bool</span> {
<span class="kw">match</span> <span class="self">self</span> {
<span class="ident">Visibility::Inherited</span> =&gt; <span class="bool-val">false</span>,
<span class="kw">_</span> =&gt; <span class="bool-val">true</span>,
}
}
}
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;printing&quot;</span>)]</span>
<span class="kw">mod</span> <span class="ident">printing</span> {
<span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>;
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::print::TokensOrDefault</span>;
<span class="kw">use</span> <span class="ident">proc_macro2::TokenStream</span>;
<span class="kw">use</span> <span class="ident">quote</span>::{<span class="ident">ToTokens</span>, <span class="ident">TokenStreamExt</span>};
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;printing&quot;</span>)))]</span>
<span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">Variant</span> {
<span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&amp;mut</span> <span class="ident">TokenStream</span>) {
<span class="ident">tokens</span>.<span class="ident">append_all</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">attrs</span>);
<span class="self">self</span>.<span class="ident">ident</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
<span class="self">self</span>.<span class="ident">fields</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">eq_token</span>, <span class="ident">disc</span>)) <span class="op">=</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">discriminant</span> {
<span class="ident">eq_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
<span class="ident">disc</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
}
}
}
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;printing&quot;</span>)))]</span>
<span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">FieldsNamed</span> {
<span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&amp;mut</span> <span class="ident">TokenStream</span>) {
<span class="self">self</span>.<span class="ident">brace_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> {
<span class="self">self</span>.<span class="ident">named</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
});
}
}
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;printing&quot;</span>)))]</span>
<span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">FieldsUnnamed</span> {
<span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&amp;mut</span> <span class="ident">TokenStream</span>) {
<span class="self">self</span>.<span class="ident">paren_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> {
<span class="self">self</span>.<span class="ident">unnamed</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
});
}
}
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;printing&quot;</span>)))]</span>
<span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">Field</span> {
<span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&amp;mut</span> <span class="ident">TokenStream</span>) {
<span class="ident">tokens</span>.<span class="ident">append_all</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">attrs</span>);
<span class="self">self</span>.<span class="ident">vis</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">ident</span>) <span class="op">=</span> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">ident</span> {
<span class="ident">ident</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
<span class="ident">TokensOrDefault</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="ident">colon_token</span>).<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
}
<span class="self">self</span>.<span class="ident">ty</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
}
}
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;printing&quot;</span>)))]</span>
<span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">VisPublic</span> {
<span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&amp;mut</span> <span class="ident">TokenStream</span>) {
<span class="self">self</span>.<span class="ident">pub_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
}
}
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;printing&quot;</span>)))]</span>
<span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">VisCrate</span> {
<span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&amp;mut</span> <span class="ident">TokenStream</span>) {
<span class="self">self</span>.<span class="ident">crate_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
}
}
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">&quot;printing&quot;</span>)))]</span>
<span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">VisRestricted</span> {
<span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&amp;mut</span> <span class="ident">TokenStream</span>) {
<span class="self">self</span>.<span class="ident">pub_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
<span class="self">self</span>.<span class="ident">paren_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> {
<span class="comment">// TODO: If we have a path which is not &quot;self&quot; or &quot;super&quot; or</span>
<span class="comment">// &quot;crate&quot;, automatically add the &quot;in&quot; token.</span>
<span class="self">self</span>.<span class="ident">in_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
<span class="self">self</span>.<span class="ident">path</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>);
});
}
}
}
</code></pre></div>
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