mixin menu_item(obj, level, parent)
  if typeof obj === 'string'
    obj = list[obj]

  composite = (obj.type === 'section' || obj.type === 'utility' || obj.type === 'namespace' || obj.type === 'class' || obj.type === 'mixin')
  hidden = !( level <= 1 || composite )
  //-li(class=hidden ? 'hidden' : '')
  li.menu-item
    short = level === 0 || parent.type === 'section' || !composite
    mixin link(obj, short, [obj.type.replace(/ /g, '-'), obj.deprecated && 'deprecated', obj.chainable && 'chainable', obj.internal && 'internal', obj.readonly && 'readonly'].filter(function(x){return !!x;}))
    if obj.children.length
      ul(class=hidden ? 'hidden' : '')
        for child in obj.children.filter(function(x){return x.type === 'utility'})
          mixin menu_item(child, level + 1, obj)
        for child in obj.children.filter(function(x){return x.type === 'constructor'})
          mixin menu_item(child, level + 1, obj)
        for child in obj.children.filter(function(x){return x.type === 'namespace' || x.type === 'class' || x.type === 'mixin'})
          mixin menu_item(child, level + 1, obj)
        for child in obj.children.filter(function(x){return x.type === 'event'})
          mixin menu_item(child, level + 1, obj)
        for child in obj.children.filter(function(x){return x.type === 'class method'})
          mixin menu_item(child, level + 1, obj)
        for child in obj.children.filter(function(x){return x.type === 'class property'})
          mixin menu_item(child, level + 1, obj)
        for child in obj.children.filter(function(x){return x.type === 'instance method'})
          mixin menu_item(child, level + 1, obj)
        for child in obj.children.filter(function(x){return x.type === 'instance property'})
          mixin menu_item(child, level + 1, obj)
        for child in obj.children.filter(function(x){return x.type === 'constant'})
          mixin menu_item(child, level + 1, obj)

ul.menu
  for obj in tree.children
    if (showInternals || !obj.internal)
      mixin menu_item(obj, 0)