class Haml::AttributeCompiler

def compile_common_attribute(key, values)
  var = unique_name
  [:multi,
   [:code, "#{var} = (#{merged_value(key, values)})"],
   [:case, var,
    ['Hash', runtime_build([AttributeValue.new(:dynamic, key, var)])],
    ['true', true_value(key)],
    ['false, nil', [:multi]],
    [:else, [:multi,
             [:static, " #{key}=#{@attr_wrapper}"],
             [:escape, Escapable::EscapeSafeBuffer.new(@escape_attrs), [:dynamic, var]],
             [:static, @attr_wrapper]],
    ]
   ],
  ]
end