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<h1 id='unowned-variable-capture' class='heading'>Unowned Variable Capture</h1>
<p>Prefer capturing references as weak to avoid potential crashes</p>
<ul>
<li><strong>Identifier:</strong> <code>unowned_variable_capture</code></li>
<li><strong>Enabled by default:</strong> No</li>
<li><strong>Supports autocorrection:</strong> No</li>
<li><strong>Kind:</strong> lint</li>
<li><strong>Analyzer rule:</strong> No</li>
<li><strong>Minimum Swift compiler version:</strong> 5.0.0</li>
<li><strong>Default configuration:</strong>
<table>
<thead>
<tr><th>Key</th><th>Value</th></tr>
</thead>
<tbody>
<tr>
<td>
severity
</td>
<td>
warning
</td>
</tr>
</tbody>
</table></li>
</ul>
<h2 id='non-triggering-examples' class='heading'>Non Triggering Examples</h2>
<pre class="highlight swift"><code><span class="n">foo</span> <span class="p">{</span> <span class="p">[</span><span class="k">weak</span> <span class="k">self</span><span class="p">]</span> <span class="k">in</span> <span class="n">_</span> <span class="p">}</span>
</code></pre>
<pre class="highlight swift"><code><span class="n">foo</span> <span class="p">{</span> <span class="p">[</span><span class="k">weak</span> <span class="k">self</span><span class="p">]</span> <span class="n">param</span> <span class="k">in</span> <span class="n">_</span> <span class="p">}</span>
</code></pre>
<pre class="highlight swift"><code><span class="n">foo</span> <span class="p">{</span> <span class="p">[</span><span class="k">weak</span> <span class="n">bar</span><span class="p">]</span> <span class="k">in</span> <span class="n">_</span> <span class="p">}</span>
</code></pre>
<pre class="highlight swift"><code><span class="n">foo</span> <span class="p">{</span> <span class="p">[</span><span class="k">weak</span> <span class="n">bar</span><span class="p">]</span> <span class="n">param</span> <span class="k">in</span> <span class="n">_</span> <span class="p">}</span>
</code></pre>
<pre class="highlight swift"><code><span class="n">foo</span> <span class="p">{</span> <span class="n">bar</span> <span class="k">in</span> <span class="n">_</span> <span class="p">}</span>
</code></pre>
<pre class="highlight swift"><code><span class="n">foo</span> <span class="p">{</span> <span class="nv">$0</span> <span class="p">}</span>
</code></pre>
<pre class="highlight swift"><code><span class="kd">final</span> <span class="kd">class</span> <span class="kt">First</span> <span class="p">{}</span>
<span class="kd">final</span> <span class="kd">class</span> <span class="kt">Second</span> <span class="p">{</span>
<span class="k">unowned</span> <span class="k">var</span> <span class="nv">value</span><span class="p">:</span> <span class="kt">First</span>
<span class="nf">init</span><span class="p">(</span><span class="nv">value</span><span class="p">:</span> <span class="kt">First</span><span class="p">)</span> <span class="p">{</span>
<span class="k">self</span><span class="o">.</span><span class="n">value</span> <span class="o">=</span> <span class="n">value</span>
<span class="p">}</span>
<span class="p">}</span>
</code></pre>
<h2 id='triggering-examples' class='heading'>Triggering Examples</h2>
<pre class="highlight swift"><code><span class="n">foo</span> <span class="p">{</span> <span class="p">[</span><span class="err"></span><span class="k">unowned</span> <span class="k">self</span><span class="p">]</span> <span class="k">in</span> <span class="n">_</span> <span class="p">}</span>
</code></pre>
<pre class="highlight swift"><code><span class="n">foo</span> <span class="p">{</span> <span class="p">[</span><span class="err"></span><span class="k">unowned</span> <span class="n">bar</span><span class="p">]</span> <span class="k">in</span> <span class="n">_</span> <span class="p">}</span>
</code></pre>
<pre class="highlight swift"><code><span class="n">foo</span> <span class="p">{</span> <span class="p">[</span><span class="n">bar</span><span class="p">,</span> <span class="err"></span><span class="k">unowned</span> <span class="k">self</span><span class="p">]</span> <span class="k">in</span> <span class="n">_</span> <span class="p">}</span>
</code></pre>
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