# File lib/wsdl/xmlSchema/element.rb, line 114
  def parse_attr(attr, value)
    case attr
    when NameAttrName
      # namespace may be nil
      if directelement? or elementform == 'qualified'
        @name = XSD::QName.new(targetnamespace, value.source)
      else
        @name = XSD::QName.new(nil, value.source)
      end
    when FormAttrName
      @form = value.source
      if @form != 'qualified' and @name.namespace
        @name = XSD::QName.new(nil, @name.name)
      end
      @form
    when TypeAttrName
      @type = value
    when RefAttrName
      @ref = value
    when MaxOccursAttrName
      if parent.is_a?(All)
        if value.source != '1'
          raise Parser::AttributeConstraintError.new(
            "cannot parse #{value} for #{attr}")
        end
      end
      if value.source == 'unbounded'
        @maxoccurs = nil
      else
        @maxoccurs = Integer(value.source)
      end
      value.source
    when MinOccursAttrName
      if parent.is_a?(All)
        unless ['0', '1'].include?(value.source)
          raise Parser::AttributeConstraintError.new(
            "cannot parse #{value} for #{attr}")
        end
      end
      @minoccurs = Integer(value.source)
    when NillableAttrName
      @nillable = to_boolean(value)
    when DefaultAttrName
      @default = value.source
    when AbstractAttrName
      @abstract = to_boolean(value)
    else
      nil
    end
  end