"special">(</span><span class="identifier">ec</span><span class="special">)</span>
            <span class="keyword">return</span><span class="special">;</span>

        <span class="comment">// Consume the buffer octets that were actually parsed.</span>
        <span class="identifier">buffer</span><span class="special">.</span><span class="identifier">consume</span><span class="special">(</span><span class="identifier">bytes_used</span><span class="special">);</span>
    <span class="special">}</span>
   