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<section id='main' class="content source"><pre class="line-numbers"><span id="1"> 1</span>
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</pre><pre class='rust '>
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>ops</span>::<span class='ident'>Index</span>;
<span class='kw'>use</span> <span class='kw'>super</span>::<span class='kw'>super</span>::<span class='ident'>syn</span>::<span class='ident'>Field</span> <span class='kw'>as</span> <span class='ident'>SynField</span>;
<span class='kw'>use</span> <span class='kw'>super</span>::<span class='kw'>super</span>::<span class='ident'>Ty</span> <span class='kw'>as</span> <span class='ident'>Ty</span>;
<span class='kw'>type</span> <span class='ident'>SynFields</span> <span class='op'>=</span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>SynField</span><span class='op'>></span>;
<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>,<span class='ident'>Debug</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Field</span> {
<span class='kw'>pub</span> <span class='ident'>id</span>: <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span>,
<span class='kw'>pub</span> <span class='ident'>ty</span>: <span class='ident'>Ty</span>
}
<span class='kw'>impl</span> <span class='ident'>Field</span> {
<span class='doccomment'>/// Build a field from the `syn` crate field type</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>from_syn_field</span>(<span class='ident'>x</span>: <span class='kw-2'>&</span><span class='ident'>SynField</span>) <span class='op'>-></span> <span class='ident'>Field</span> {
<span class='ident'>Field</span> {
<span class='ident'>id</span>: <span class='kw'>match</span> <span class='kw-2'>&</span><span class='ident'>x</span>.<span class='ident'>ident</span> {
<span class='kw-2'>&</span><span class='prelude-ty'>Option</span>::<span class='prelude-val'>None</span> <span class='op'>=></span> <span class='prelude-val'>None</span>,
<span class='kw-2'>&</span><span class='prelude-ty'>Option</span>::<span class='prelude-val'>Some</span>(<span class='kw-2'>ref</span> <span class='ident'>x</span>) <span class='op'>=></span> <span class='prelude-val'>Some</span>(<span class='ident'>x</span>.<span class='ident'>to_string</span>())
},
<span class='ident'>ty</span>: <span class='ident'>x</span>.<span class='ident'>ty</span>.<span class='ident'>clone</span>()
}
}
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>get_name</span><span class='op'><</span><span class='lifetime'>'a</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='lifetime'>'a</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='kw-2'>&</span><span class='lifetime'>'a</span> <span class='ident'>str</span><span class='op'>></span> {
<span class='kw'>match</span> <span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>id</span> {
<span class='kw-2'>&</span><span class='prelude-ty'>Option</span>::<span class='prelude-val'>Some</span>(<span class='kw-2'>ref</span> <span class='ident'>s</span>) <span class='op'>=></span> <span class='prelude-val'>Some</span>(<span class='ident'>s</span>),
_ <span class='op'>=></span> <span class='prelude-val'>None</span>
}
}
}
<span class='doccomment'>/// A collect of individual field</span>
<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>,<span class='ident'>Debug</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Fields</span>(<span class='kw'>pub</span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>Field</span><span class='op'>></span>);
<span class='kw'>impl</span> <span class='ident'>From</span><span class='op'><</span><span class='ident'>SynFields</span><span class='op'>></span> <span class='kw'>for</span> <span class='ident'>Fields</span> {
<span class='doccomment'>/// Bulk conversion of several fields at once</span>
<span class='kw'>fn</span> <span class='ident'>from</span>(<span class='ident'>x</span>: <span class='ident'>SynFields</span>) <span class='op'>-></span> <span class='ident'>Fields</span> {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='ident'>Vec</span>::<span class='ident'>with_capacity</span>(<span class='ident'>x</span>.<span class='ident'>len</span>());
<span class='kw'>for</span> <span class='ident'>item</span> <span class='kw'>in</span> <span class='ident'>x</span> {
<span class='ident'>v</span>.<span class='ident'>push</span>(<span class='ident'>Field</span>::<span class='ident'>from_syn_field</span>(<span class='kw-2'>&</span><span class='ident'>item</span>));
}
<span class='ident'>Fields</span>(<span class='ident'>v</span>)
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='lifetime'>'a</span><span class='op'>></span> <span class='ident'>From</span><span class='op'><</span><span class='kw-2'>&</span><span class='lifetime'>'a</span> <span class='ident'>SynFields</span><span class='op'>></span> <span class='kw'>for</span> <span class='ident'>Fields</span> {
<span class='doccomment'>/// Bulk conversion of several fields at once</span>
<span class='kw'>fn</span> <span class='ident'>from</span>(<span class='ident'>x</span>: <span class='kw-2'>&</span><span class='lifetime'>'a</span> <span class='ident'>SynFields</span>) <span class='op'>-></span> <span class='ident'>Fields</span> {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='ident'>Vec</span>::<span class='ident'>with_capacity</span>(<span class='ident'>x</span>.<span class='ident'>len</span>());
<span class='kw'>for</span> <span class='ident'>item</span> <span class='kw'>in</span> <span class='ident'>x</span> {
<span class='ident'>v</span>.<span class='ident'>push</span>(<span class='ident'>Field</span>::<span class='ident'>from_syn_field</span>(<span class='kw-2'>&</span><span class='ident'>item</span>));
}
<span class='ident'>Fields</span>(<span class='ident'>v</span>)
}
}
<span class='kw'>impl</span> <span class='ident'>Index</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span> <span class='kw'>for</span> <span class='ident'>Fields</span> {
<span class='kw'>type</span> <span class='ident'>Output</span> <span class='op'>=</span> <span class='ident'>Field</span>;
<span class='attribute'>#[<span class='ident'>inline</span>(<span class='ident'>always</span>)]</span>
<span class='kw'>fn</span> <span class='ident'>index</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>x</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='self'>Self</span>::<span class='ident'>Output</span> {
<span class='self'>self</span>.<span class='number'>0</span>.<span class='ident'>index</span>(<span class='ident'>x</span>)
}
}
<span class='kw'>impl</span> <span class='ident'>Fields</span> {
<span class='doccomment'>/// Get number of args</span>
<span class='attribute'>#[<span class='ident'>inline</span>(<span class='ident'>always</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>len</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>usize</span> {
<span class='self'>self</span>.<span class='number'>0</span>.<span class='ident'>len</span>()
}
<span class='doccomment'>/// Get id of an argument based on a position</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// This returns the name of an arg. If the ID doesn't</span>
<span class='doccomment'>/// exist (which means we're working with a tuple)</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>get_id</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>x</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='ident'>String</span> {
<span class='kw'>match</span> <span class='self'>self</span>[<span class='ident'>x</span>].<span class='ident'>id</span> {
<span class='prelude-ty'>Option</span>::<span class='prelude-val'>Some</span>(<span class='kw-2'>ref</span> <span class='ident'>i</span>) <span class='op'>=></span> <span class='ident'>i</span>.<span class='ident'>to_string</span>(),
<span class='prelude-ty'>Option</span>::<span class='prelude-val'>None</span> <span class='op'>=></span> <span class='ident'>x</span>.<span class='ident'>to_string</span>()
}
}
<span class='doccomment'>/// Get Type of an argument</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Return's the Type of an arg.</span>
<span class='attribute'>#[<span class='ident'>inline</span>(<span class='ident'>always</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>get_ty</span><span class='op'><</span><span class='lifetime'>'a</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='lifetime'>'a</span> <span class='self'>self</span>, <span class='ident'>x</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='lifetime'>'a</span> <span class='ident'>Ty</span> {
<span class='kw-2'>&</span><span class='self'>self</span>[<span class='ident'>x</span>].<span class='ident'>ty</span>
}
}
</pre>
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