an class='id identifier rubyid_template_extension'>template_extension</span><span class='period'>.</span><span class='id identifier rubyid_to_sym'>to_sym</span>
  <span class='kw'>case</span> <span class='ivar'>@extension</span>
  <span class='kw'>when</span> <span class='symbol'>:js</span>
    <span class='id identifier rubyid_render'>render</span> <span class='symbol'>:js</span> <span class='op'>=&gt;</span> <span class='lparen'>(</span><span class='ivar'>@contents</span> <span class='op'>=</span> <span c