ass="identifier">phoenix</span><span class="special">::</span><span class="identifier">evaluator</span><span class="special">(</span><span class="identifier">proto</span><span class="special">::</span><span class="identifier">_left</span><span class="special">,</span> <span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">_context</span><span class="special">)</span>
          <span class="special">,</span> <span class="identifier">phoenix</span><span class="special">